8th Grade Math

8th Grade Math Vocabulary

8th Grade Graphing

Functions Math

Miscellaneous

100

Solve: 3 + a = 10

a = 7

100

A move that undoes what was done by the previous operation

Inverse Operation

100

Slope intercept form of a linear equation.

y=mx + b

100

Slope of y=2x-4

What is m=2

100

True or false: 9 is a rational number.

True

200

Solve: 6 = y - 3

y = 9

200

A number that shows repeated multiplication.

Exponent

200

The point where the line crosses the y-axis.

y-intercept

200

y-intercept of y=3x-8

What is -8

200

This symbol

pi

is called...

What is pi

300

Solve: 4 + 2c = 8

c = 2

300

A set of disconnected data points plotted on a coordinate plane. It allows us to investigate connections between two variables.

Scatterplot

300

The measure of a line's steepness

slope

300

Slope of -3/4x + 6

What is m=-3/4

300

True or false: This is a rational number

square root 2 34

What is false.

400

Solve: -3(x+5) = 2x-5

x=-2

400

Decimals that go on forever, but don't repeat.

irrational number

400

y=2/5x+4 start by...

Plotting the y-intercept at (0,4)

400

Slope of y=-2

What is m=0

400

Numbers that include radicals that are NOT perfect squares...and pi

What are irrational numbers?

500

Solve the system:

x+y = -5

12-3x=2y

x = 22

y = -27

500

A number that can be written as a fraction.

rational number

500

The greater the slope, the ______ the line goes upwards.

Steeper

500

Find the slope of the line passing through the following points: (-4, 0) and (-3, -2).

What is -2.

500

True or false: A line where the y values increase as the y values decrease has a positive slope.

False