8th grade midterm review

Order of operations

100

5-((6x6)+4)/4

What is -5?

200

(7 × 5) ÷ 5

What is 7?

300

(2 + 6 × 2 + 2 − 4) × 2

What is 24?

400

2 x 7 – 10/(9-4)

What is 12?

500

((3²x3)²-8

What is 1756?

Exponents

100

Exponents are repeated this.

What is multiplication?

200

Negative exponents show repeated this.

What is division?

300

5^-4_{, when reduced down completely}

What is 1/625?

400

12³

What is 1728?

500

456³

What is 94,818,816?

Graphs

100

When finding the slope, we call it this over this

What is rise over run?

OR

What is delta y over delta x?

200

The y-intercept is where the line goes through this point on a graph.

What is y-axis?

300

In the equation y=1/4x – 7, these are the slope and y-intercept (respectively)

What is 1/4 and -7?

400

What is the slope and y-intercept of the following equation? y = -12 – 3/4x

What is -3/4 and -12?

500

The slope formula, using variables

What is y2-y1/x2-x1?

Solving equations

100

It's x in the equation, 2x=8

What is 4?

200

The value of "a" in the equation a/3+3 = 7

What is 12?

300

It's m in the equation 7 – 3m = 4

What is 1?

400

When solving for y, 8x + 5y = 15 becomes this

What is y=3-8/5x?

500

Solve for y: y/5 + 7x = 25

What is y=125-35x?

Systems of equations

100

-4x + 2y = -30

4x + 8y = 20

What is (7,-1)?

OR

What is x=7 and y=-1?

200

−6x + 5y = 1

6x + 4y = −10

What is (-1,-1)?

OR

What is x=-1 and y=-1?

300

2x − 3y = −1

y = x − 1

What is (4,3)?

OR

What is x=4 and y=3?

400

y = 5x − 7

−3x − 2y = −12

What is (2,3)?

OR

What is x=2 and y=3?

500

6x + 6y = −6

5x + y = −13

What is (-3,2)?

OR

What is x=-3 and y=2?