Algebra 1 Pre Unit 10 Review

Solving Equations

100

Solve: 2x + 2 = 18

x = 8

200

Solve: 15x - 7 = 2x + 6

x = 1

300

Solve: 21 + x = 2(x - 6)

x = 33

400

Solve: x² - 5 = 11

x = 4

500

Solve: 2x + 5 - (4x + 6) = 13

x = -7

Functions

100

Algebra: Is this a function: {(1, 2), (2, 3), (2, 4)} 

No

200

Solve for T in the equation: I = PRT

T = I/PR

300

Algebra: Solve for a: ax + b = c 

Algebra: a = (c - b)/x 

400

Graph y = x² in your calculator. Is it a function?

Yes (Passes Vertical Line Test)

500

State a value for x that would make this a function:

{(2,3), (5,7), (7,8), (x, 10)}

Any number other than 2, 5, 7.

Sequences

100

Is the following sequence Arithmetic or Geometric?

2, 4, 8, 16, 32, ...

Geometric (times 2)

200

Is the following sequence Arithmetic or Geometric?

1, 5, 9, 13, 17, ....

Arithmetic (Add 4)

300

Find the common ratio:

3, -12, 48, - 192

r = -4

400

Find the 12th term in the following sequence:

10, 13, 16, 19, ...

43

500

Find the 15th term in the following sequence:

-2, 4, -8, 16, ...

-32768

Factoring

100

Factor the following by GCF:

2x+10

2(x + 5)

200

Factor the following by GCF:

10x² + 40x³

10x² (1 + 4x)

300

Factor using Difference of Perfect Squares:

16x² - 25

(4x + 5)(4x - 5)

400

Factor the following trinomial:

x² + 10x +16

(x+8)(x+2)

500

Factor the following trinomial:

x² - x - 20

(x - 5) (x + 4)

Potpourri

100

Who was the first woman to fly solo across the Atlantic Ocean, only to mysteriously disappear years later while attempting to fly around the globe?

Amelia Earhart

200

What is the only metal that remains in a liquid state at standard room temperature?

Hint: Thermometers

Mercury

300

The 1914 assassination of which figure is credited with sparking the start of World War I?

Archduke Franz Ferdinand

400

What band is famous guitarist Flea a part of?

Red Hot Chili Peppers

500

List the first 4 planets in our solar system closest to the sun from closest to furthest. 

Mercury, Venus, Earth, Mars