8th Grade Math Review

What's the Slope?

100

Find the slope given two points: (2,4) and (5,7).

What is 3/3 or 1.

200

Find the slope given two points: (0,0) and (4,-8).

What is -2

300

Find the slope in this equation: Y= 4X+7

What is 4.

400

Find the slope given two points: (8,3) and (5,2).

What is 1/3

500

Find the slope in this equation: 2Y = 6X + 10

What is 3.

Simply Solve

100

The Value of X in 3X+8=23

What is 5?

200

The value of X in 6X+4X=40

What is 4?

300

The value of X in 8X-2X+10=46

What is 6?

400

The value of X in -3X-6=12

What is 48?

500

Solve for X in 5(2X-7)=65

What is 10?

Vocabulary

100

A type of correlation where the x values increase and the y values decrease.

What is negative correlation?

200

Another word for Rate of Change.

What is Slope?

300

A slope of a vertical line.

What is undefined?

400

The number lines on a graph that are labeled X and Y.

What are the Axes?

500

What b stands for in the equation: y=mx+b

What is a y-intercept?

Scientific Notation

100

Convert to Scientific Notation: 26,870

What is 2.687 x 10 to the 4th power?

200

Convert to Scientific Notation: 0.000075

What is 7.5 x 10 to the -5 power?

300

Convert to Standard Notation: 6.8 x 10⁴ + 2.2 x 10⁴

What is 9x10⁴?

400

What is 4.8 x 10⁶/1.2 x 10⁵?

40

500

An elephant weighs 1.2 x 10³ lbs and a gecko weighs 4 x 10^-2 lbs. How many times larger is the elephant than the gecko?

What is 30,000 lbs or 3 x 10⁴ lbs?

On a Graph

100

What is the slope in the equation: y=2x+6

What is 2?

200

Point T (2,-8) is translated three units left and two units up. What are the coordinates of T'?

What is (-1, -6)?

300

Yes or No: Do the following sets of points represent a function? (1, 4) (2, 6) (3, 8) (4, 4)

What is yes?

400

Graph the line y=-2/3x + 4.

Answers may vary

500

What is the slope of a line that passes through (-1, -4) and (3, -6)

What is -1/2?