8th Grade Math Review

Solving Equations

100

Solve for x. 

x + 2 = -5

What is -7

200

13x = 26

What is 2

300

Solve for x. 

3(x + 2) = 12

What is 2

400

Solve for x. 

2x + 4 = 6

What is 1

500

Solve for x. 

9x - 7x - 5 = 17

What is 11

Systems of Equations

100

The solution to the system of equations: 

r + s = -6

 r = -10 + s

What is (-8,2)

200

The solution to the system: 

x = 4y 

2x + 3y = 22

What is (8,2)

300

x + y = 104. 

x= 68 + y. 

What are the numbers?

x= 86 and y = 18

400

The solution to the system of equations: 

y = -3 

x = 5

What is (5, -3)

500

The solution to the system of equations:

 y= 3x + 3 

y = 3x - 2

What is NO SOLUTION

Transformations

100

The point (2,3) after (x, y) becomes (x+2, y-3)

What is (4,0)

200

The point A = (4, 2) is translated up 5 and to the right 4. What are the coordinates of A?

What is (9, 6)

300

The coordinates of A are (2, 5). The coordinates of the point A' once A has been reflected over the x-axis.

What is (2, -5)

400

Point A has the coordinates (7,-3). The coordinates of A' after a 90 degree rotation counterclockwise around the origin.

What is (3, 7)

500

Triangle ABC has coordinates (2,3), (-4, 6) and (-1,5). The coordinates of A'B'C' after a dilation with scale factor 2.

What is A(4,6), B(-8,12), C(-2,10)

Slope

100

The slope of the line connecting (2,4) and (-2, -5)

What is 9/4

200

Write the equation of a line with a slope of 3 and a y-intercept of 4

What is y = 3x + 4

300

The x-intercept of 3x + 6y = 12

Hint when y = 0 

What is 4 or (4,0)

400

The slope of the line     y = 2/3x + 5

What is 2/3

500

A line that goes from quadrant III to the quadrant I would have a slope of.....

What is positive

Exponent Rules

100

y⁴ x y^-1

What is y³

200

(3x²)³

What is 27x⁶

300

8⁵/8⁷  Must write with a positive exponent.

What is 1/x²

400

(-4)²

What is 16

500

If x= -2 and y = 4 then evaluate 3x²y + (-3x)

What is 54