8th Grade Math Vocabulary

8th Grade Math

8th Grade Graphing

Advanced Math

Trivia

100

Initial value, where the line crosses the y-axis, starting point

What is the y-intercept?

100

0.0000342 written in scientific notation.

What is 3.42 x 10^{5}?

100

The graph of x = 5 looks like this when graphed on a coordinate plane.

What is a vertical line?

100

y-intercept of y=3x-8

What is -8

100

If a line is parallel to another, it has _____ slope

...the same slope.

200

Longest side of a right triangle, opposite the right angles, always c.

What is the Hypotenuse?

200

The three steps to finding a slope-intercept form equation.

1. Find m

2. Find b

3. Write your equation.

200

Slope of the line that passes through (2,6) and (4,6).

What is m=o

200

Slope of y=-3/4x + 6

What is m=-3/4

200

If you solve an equation has infinitely many solutions, what would a solution look like?

x=x

6=6

Same on both sides

300

Also known as the opposite operation, used to move a term from one side of the equals sign to the other.

What are inverse operations?

300

Two parts:

1. When two lines are graphed on the same coordinate plane.

2. When the two lines appear to be graphed on top of one another.

What is system of equations?

What is "infinitely many solutions"?

300

The slope formula.

What is m = (y2 - y1)/(x2 - x1)

300

A line has a slope of 5/7. What is the slope of a line that is perpendicular to the line?

-7/5

300

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

What are irrational numbers?

400

A triangle that has two equal sides

What is an isosceles triangle?

400

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

x = -2

400

A 180 degree rotation of a shape graphed in Quadrant III of a coordinate plane will be mapped to this new quadrant.

What is quadrant I?

400

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

What is -2.

400

The only type of transformation that makes the new image not congruent to the original.

What is a dilation?

500

The last step to get a squared variable by itself.

What is finding the square root?

500

Simplify the expression: (2^{2})^{3} x 2^{-6}

What is 1?

500

The 6 types of correlations for a scatterplot.

What is...

positive and negative

strong and weak

linear and nonlinear

(also no correlation)

500

Write an equation for the line in slope intercept form.

y = -1/3x + 4

500

These numbers can be used to plot irrational numbers on a number line without using a calculator

Square roots of perfect squares