8th Grade Math PSSA - VOCAB
Quiz
•
Mathematics
•
6th - 8th Grade
•
Easy
Kristyn McCrohan
Used 7+ times
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8 questions
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1.
MATCH QUESTION
1 min • 1 pt
Systems of Equations
Match the following:
Finding the solution of by replacing a variable in one equation for what the variable equals
Graphing
any ordered pair that makes all equations in the system true
Inspection
Finding how many solutions there are just by looking at the equations in y=mx+b
Solution of a system of linear equations
Finding the solution of a system by where they intersect on a graph
System of linear equations
two or more linear equations that use the same variables
Substitution
2.
MATCH QUESTION
1 min • 1 pt
Bivariate Data
Match the following
Data by numbers. Ex: age, months, time, distance
Categorical data
A data point that doesn't fit the pattern, far away from the others
Cluster
Straight line that best shows the pattern. Should have about the same # of points above and below
Measurement data / Numerical data
A group of data points that follow the same general pattern
Trend line / Line of best fit
Data in groups. Ex: colors, sports, music genres, favorite foods
Outlier
3.
MATCH QUESTION
1 min • 1 pt
Exponents
Match the following:
opposite of an exponent of 2 (ex: 3 is the square root of 9 because 3x3=9)
Perfect square
the cube of an integer (8, 27, 64, 125)
Square root
the square of an integer (1, 4, 9, 16, 25, 36, 49, 64, 81, 100)
Perfect cube
opposite of an exponent of 3 (ex: 2 is the cube root of 8 because 2x2x2=8)
Cube root
4.
MATCH QUESTION
1 min • 1 pt
Exponents
Match the following:
multiply 2 powers with the same base, keep the common base and ADD the exponents
Product rule
When you have an exponent raised to a power, keep the base and MULTIPLY the exponents
Irrational number
a number that when written as a decimal it does not end or repeat (ex: 2.3587409873652974…)
Power rule
_ x 10^exponent
where the first number is between 1-10 (one digit before the decimal)
Scientific Notation
5.
MATCH QUESTION
1 min • 1 pt
Slope
Match the following
the point on the graph where the line crosses the x-axis (what is x when y=0)
Y-intercept
y=mx+b
m is slope
b is y-intercept
Slope intercept form
the point on the graph where the line crosses the y-axis (what is y when x=0)
X-intercept
the change in y divided by the change in x (or rise over run)
Slope of a line
6.
MATCH QUESTION
1 min • 1 pt
Functions
Match the following:
a function whose graph is not a straight line
Function
X values
Initial Value
relation in where each input has exactly one output, x values CAN'T repeat with different y values
Nonlinear function
the y-intercept of a graph, the output when the input is 0
Output
Y values
Input
7.
MATCH QUESTION
1 min • 1 pt
Pythagorean Theorem
Match the following:
short sides of a right triangle that are touching the right angle
Converse of the Pythagorean theorem
Pythagorean Theorem
in right triangles, the sum of the squares of the lengths of the legs = the square of the hypotenuse
Hypotenuse
if the pythagorean theorem works for a triangle, then it is a right triangle!
Leg
long diagonal side of a right triangle that is across from the right angle
Pythagorean Theorem formula
8.
MATCH QUESTION
1 min • 1 pt
Volume
Match the following:
Half the distance across a circle
Cone
a perfectly round 3 dimensional figure (ex: basketball)
Radius
a 3 dimensional figure with one circular base and one vertex (ex: ice cream cone)
Sphere
combination of two or more figures in one object
Cylinder
a 3 dimensional figure with 2 identical circular bases (ex: can)
Composite figure
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