8th Volume 1 Review

Real Numbers

100

When can we show numbers in scientific notation?

If the quantities are very large or very small, we can show the numbers in scientific notation. 

200

Find the equivalent of whole numbers.

-2, 3.5,  9/3,  5/7, 0, -1/2, 365

9/3, 0, 365

300

Find two irrational numbers.

The square root of 12, 3/4, 0.22222..., 3⁵ , pi, -4.5, 

Pi, Square root of 12

400

Convert the repeating decimal 0.444444... to the fraction

4/9

500

Simplify 5^{2 x} 5^-4 (No Exponent)

 1/ 25

Linear Equations

100

What is m and b in y=mx+b form?

Slope and y-intercept

200

Which slope is the greater?

A. y=3x+6    B. 4y=8x+28    C. 5x +y=30

A

300

Solve the equation.

A. 2x +6 -3 = -3x +28

x=5

400

Find the slope.

( -2, 4) , (3, -6)

-2

500

Complete the equation.

(1,-2), (4,13)

y=5x-7

Functions/Equations

100

What is a relation?

Any set of ordered pairs

200

What is a function?

A special relationship where each input has one output.

300

Is it a function? Why?

(2,3), (4,6), (3,3), (5, 6), (8,6)

Yes, because each input has one output.

400

Combine the like terms.

1/3x + 1/6x -3 -6

1/2x or 3/6x -9

500

Combine the like terms and solve the equation.

2.5c +4.8c -10=1.3c +20

C=5

Fractions

100

What is a reciprocal of 2/6

6/2 or 3

200

3/8 + ? = 1

8/3

300

Conver the improper fraction  23/7 into the mixed number.

3 2/7

400

Find the answer.

3 1/8 - 1 1/6 =

1  23/24

500

Find the product.

2/3 x -5/6 x  18/ 5 =

-2

Decimals

100

2.5 x 100

250

200

3.67 /100

0.0367

300

-3 +1.75 -4 =

- 5.25

400

-3.5 x -1.2 x -5

-21

500

0.5 / -0.025

- 20