8th Grade Review

Scientific Notation

100

Write 456,000,000 in scientific notation.

4.65 x 10⁸

200

Write 3.21 x 10^-4 in standard form.

.000321

300

Write .000067 in scientific notation.

6.7 x 10^-5

400

Write 7.78 x 10⁵ in standard form.

778,000

500

What is the first rule of writing a number in scientific notation?

It must be bigger than 1 and less than 10.

Algebra Equations

100

Solve:  3(2m + 4) = 24

m = 2

200

Solve:  -4 (5k - 4) = 36

k = -1

300

Solve:  6t - 9 = 4t - 1

t = 4

400

Solve:  5v + 10 = 10 + 5v

Infinite solution or all real numbers or identity

500

Solve:  2(6j +1) = 12j +5

NO solution

P.T.

100

Does 4, 5, 6.4 form a right triangle?

Yes

200

Does 3, 4, 6 form a right triangle?

No

300

The longest side of a right triangle is called...

hypotenuse

400

How would you set up the equation to find the missing leg for a triangle with one leg of 7 in and a hypotenuse of 13 in?

7² + b² = 13²

500

Which of the following would form a right triangle?

10, 10, 14

6, 6, 9

10, 10, 14

Exponent Rules

100

Simplify:  y³ * y⁶ * y^-2

y⁷

200

Simplify:  (a⁴b⁵c⁷)³

a¹²b¹⁵c²¹

300

m⁵ / m⁵

m⁰ OR "1"

400

What is the simplified value of 2p³ * 4p⁵

8p⁸

500

What would this look like with positive exponents only?

x^-2

1 / x²

Graphing lines

100

Graph a line with a ZERO slope.

Any line running horizontally.

200

Graph a line with an UNDEFINED slope.

Any vertical line.

300

What is the slope of this line:  y = -1/2x +9

-1/2

400

Graph:  y = 2/3x -5

Start at -5 and run up 2, right 3

500

Graph:  y = -1/3x

Runs through origin and runs down 1, right 3