Quiz about Grade 8 PSSA Vocabulary Review

Question 1

What is the definition and/or examples of a rational number?

Accepted Answer

any number that can be written as a fraction

Accepted Answer

1/2

Accepted Answer

-11

Answer

Question 2

What is the definition of an Irrational number?

Accepted Answer

Non repeating / non terminating decimals.

Answer

A number that can be expressed as a fraction.

Answer

A whole number.

Answer

A negative integer.

Question 3

What is the definition of a Terminating decimal?

Accepted Answer

a decimal that ends

Answer

a decimal that repeats

Answer

a long, nasty decimal like pi

Answer

a fraction like 1/3

Question 4

What is the definition of a Repeating decimal?

Accepted Answer

A decimal with a continuing pattern.

Answer

A decimal that ends after two digits.

Answer

A decimal that is always less than one.

Answer

A decimal that contains only whole numbers.

Question 5

Which of the following is a Repeating decimal?

Accepted Answer

0.057057...

Answer

0.75

Answer

3.57

Answer

5

Question 6

What is the definition of a Square root?

Accepted Answer

Inverse of squaring a number.

Answer

A number multiplied by itself.

Answer

The result of dividing a number by two.

Answer

A number added to itself.

Question 7

What is the definition of a Cube root?

Accepted Answer

Inverse of cubing a number.

Answer

A number multiplied by itself.

Answer

The result of squaring a number.

Answer

A number divided by three.

Question 8

What is the definition of Slope on a graph?

Accepted Answer

Ratio of rise/run; rate of change.

Answer

Sum of x and y coordinates.

Answer

Product of the intercepts.

Answer

Difference between maximum and minimum values.

Question 9

What is the definition of slope from an equation in slope-intercept form?

Accepted Answer

the coefficient of x

Answer

b

Answer

whether b is positive or negative

Answer

0

Question 10

What is the definition of slope from a table?

Accepted Answer

Change in y / change in x.

Answer

Sum of x and y values.

Answer

Product of x and y values.

Answer

Difference between x and y values.

Question 11

What is true of a system of equations with no solution?

Accepted Answer

the lines are parallel

Accepted Answer

the variables will disappear and a number will equal a different number

Answer

the lines are exactly the same

Answer

the variables will disappear and a number will equal itself

Question 12

What is true of a system of equations with infinitely many solutions?

Accepted Answer

the lines are exactly the same

Accepted Answer

the variables will disappear and a number will equal itself

Answer

the lines are parallel

Answer

the variables will disappear and a number will equal a different number

Question 13

Look at the graph. Does this graph represent a function? Why or why not?

Accepted Answer

yes because it passes the vertical line test

Answer

yes because it is a continuous line

Answer

no

Answer

yes because it's a straight line

Question 14

Look at the graph. Does this graph represent a function? Why or why not?

Accepted Answer

no because it does not pass the vertical line test

Answer

yes because it is a continuous line

Answer

yes because it passes the vertical line test

Answer

yes because it's a straight line

Question 15

Given the table of values, does this table represent a function? Why or why not?

Accepted Answer

yes because no x is repeated

Answer

no because there are both positive and negaative numbers

Answer

yes because no y is repeated

Answer

no because there is a -2 in the x and in the y column

Question 16

Given the table of values, does this table represent a function? Why or why not?

Accepted Answer

no because the 4 is repeated

Answer

you cannot tell from the information given

Answer

no because all the y-values are different

Answer

yes because no y is repeated

Question 17

Given the set of ordered pairs: (0,0), (10,5), (20,10). Does this set represent a function? Why or why not?

Accepted Answer

yes, because no x is repeated

Answer

no, because no x is repeated

Answer

cannot tell form the information given

Answer

yes, because no y is repeated

Question 18

Given the set of ordered pairs: (1,2), (1,3), (3,1), (5,2). Does this set represent a function? Why or why not?

Accepted Answer

no, because 1 is repeated

Answer

yes, because 2 is repeated

Answer

yes, because 1 is repeated

Answer

no, because 2 is repeated

Question 19

What is dilation of a shape?

Accepted Answer

the number you are multiplying all ordered pairs by

Answer

whether or not you flip a shape

Answer

the number you are adding or subtracting to all ordered pairs

Answer

how far right/left/up/down you move a shape

Question 20

State the Pythagorean Theorem formula.

Accepted Answer

$$a^2 + b^2 = c^2$$

Answer

$$a^2 - b^2 = c^2$$

Answer

$$a^2 + b^2 = 2c^2$$

Answer

$$a^2 = b^2 + c^2$$

Question 21

How do you use the Pythagorean Theorem to find the distance between two points on a coordinate plane?

Accepted Answer

Plot the dots, connect them, draw a right triangle, and find the leg lengths. Use the Pythagorean Theorem to solve for the missing side.

Answer

Add the x-coordinates and y-coordinates of the points together, then divide by two.

Answer

Multiply the x-coordinates and y-coordinates of the points, then subtract the smaller from the larger.

Answer

Draw a straight line between the points and count the number of grid squares it crosses.

Question 22

Given a cone with a radius of 4 in and a height of 10 in, what is the formula for its volume?

Accepted Answer

V = $$(\frac{1}{3})\pi r^2 h = (\frac{1}{3})\pi(4)^2(10)$$

Answer

V = $$\pi r^2 h = \pi(4)^2(10)$$

Answer

V = $$(\frac{1}{2})\pi r^2 h = (\frac{1}{2})\pi(4)^2(10)$$

Answer

V = $$(1/4)\pi r^2 h = (1/4)\pi (4)^2 (10)$$

Question 23

Given a cylinder with diameter 10 and height 8, what is the formula and the calculated volume of the cylinder?

Accepted Answer

V = $$πr^2h$$ = $$π(5)^2(8)$$ = 200 $$π$$

Answer

V = $$πr^2h$$ = $$π(10)^2(8)$$ = 800 $$π$$

Answer

V = $$πr^2h$$ = $$π(5)^2(10)$$ = $$250π$$

Answer

V = $$πr^2h$$ = $$π(8)^2(5)$$ = $$320π$$

Question 24

Given a sphere with diameter 12 in (radius 6 in), what is the formula for the volume of the sphere?

Accepted Answer

V = $$(4/3)\pi(6)^3$$

Answer

V = $$(4/3)\pi(12)^3$$

Answer

$$V = \pi(6)^2$$

Answer

V = $$(1/3)\pi(6)^3$$

Question 25

What does a scatter plot with a positive correlation show?

Accepted Answer

Shows dots increasing from left to right.

Answer

Shows dots decreasing from left to right.

Answer

Shows dots in a random pattern.

Answer

Shows no relationship between the dots.

Question 26

What does a scatter plot with a negative correlation show?

Accepted Answer

Shows dots decreasing from left to right.

Answer

Shows dots increasing from left to right.

Answer

Shows dots forming a perfect circle.

Answer

Shows dots scattered randomly with no pattern.

Question 27

What does a scatter plot with no correlation show?

Accepted Answer

No visible pattern in the dots.

Answer

A straight line going upwards.

Answer

A straight line going downwards.

Answer

A perfect curve.

Question 28

What is 1.047 x 10^-5 in standard form?

Accepted Answer

0.00001047

Answer

104,700

Answer

104700000

Answer

0.000001047

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