Quiz about 8th Q1 Benchmark Review

Question 1

The points on the number line represent the values of four different numbers. Which point best approximates the location of $$\frac{5\pi}{2}$$ ?

Accepted Answer

point U

Answer

point R

Answer

point S

Answer

point T

Question 2

Consider the equation.

$$x^2=16$$

Which statement is true?

Accepted Answer

The equation has two solutions because the values $$x=-4$$ and $$x=4$$ both make the equation true.

Answer

The equation has one solution because $$x=4$$ is the only value of x that makes the equation true.

Answer

The equation has one solution because $$x=8$$ is the only value of x that makes the equation true.

Answer

The equation has two solutions because the values $$x=-8$$ and $$x=8$$ both make the equation true.

Question 3

A dog walker's total earnings, in dollars, y, for walking dogs for x hours is represented by the equation $$y=9x$$ . Which graph best represents the proportional relationship between the dog walker's total earnings and the hours worked walking dogs?

Accepted Answer

Question 4

Consider the figure. Which statement is true?

Accepted Answer

The slope of line segment SU is equal to the slope of line segment PR because the ratio of ST to TU

is equivalent to the ratio of PQ to QR.

Answer

The slope of line segment SU is not equal to the slope of line segment PR because the ratio of ST to TU

is not equivalent to the ratio of PQ to QR.

Answer

The slope of line segment SU is equal to the slope of line segment PR because the ratio of ST to SU

is equivalent to the ratio of PQ to QR.

Answer

The slope of line segment SU is equal to the slope of line segment PR because the ratio of ST to QR

is not equivalent to the ratio of PQ to TU.

Question 5

Use the information given to answer the question.

A highway director can purchase sunflower seeds from an online retailer, a garden center, or a local

farmer. The graph represents the total cost, in dollars, y, of purchasing x pounds of sunflower seeds

from the online retailer.

The equation $$y=0.50x$$ represents the total cost, y, in dollars of buying x pounds of sunflower seeds from the local farmer. Which statement is true?

Accepted Answer

The online retailer charges 2.5 times as many dollars as the local farmer for every pound of sunflower

seeds.

Answer

The local farmer charges 0.75 times as many dollars as the online retailer for every pound of sunflower

seeds.

Answer

The local farmer charges 2.5 times as many dollars as the online retailer for every pound of sunflower

seeds.

Answer

The online retailer charges 0.75 times as many dollars as the local farmer for every pound of sunflower

seeds.

Question 6

Consider the five equations. Which two equations have no solution?

Accepted Answer

Equation 2

Accepted Answer

Equation 5

Answer

Equation 1

Answer

Equation 3

Answer

Equation 4

Question 7

For which graph does the shaded region best represent the solution set to the inequality $$y\le-\frac{1}{3}x-5$$ ?

Accepted Answer

Question 8

Is 2.31 a rational or irrational number?

Accepted Answer

rational

Answer

irrational

Question 9

Is $$2.\overline{312}$$ a rational or irrational number?

Accepted Answer

rational

Answer

irrational

Question 10

Is 2.3123371... a rational or irrational number?

Accepted Answer

irrational

Answer

rational

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