Algebra

Vocabulary

100

the name for the unknown number that is represented with a letter

variable

200

the name for a number whose value will always remain the same (no variable)

constant

300

the number in front of a variable in a variable term

EX: 5x (what is the 5 called?)

co-efficient

400

the name of the rule that tells us how the sides of a right triangle are related to each other

Pythagorean Theorem

500

The form of a linear equation that looks like y-y₁=m(x-x₁)

Point-slope form

Variable Operations

100

2x + 5x = 

7x

200

2x - 5x

-3x

300

2x·5x

10x²

400

x³·x⁵

x⁸

500

(x³)⁴

x¹²

Equations

100

3x + 9 = 30

x = 7

200

4(2x-5) = 60

x = 10

300

x/3 + 5 = 20

x = 45

400

3x + 10 = 2x

x = -10

500

Solve 3x²-2=46

4 and -4

Pythagorean Theorem

100

What is the longest side of a right triangle called?

hypotenuse

200

Do the following side lengths form a right triangle?

4, 3, 2

300

Do the following side lengths form a right triangle?

1.2, 1.6, 2

400

In a right triangle, a=12, b= ?, c=13. Find the value of b.

5

500

In a right triangle, a=?, b=3, c=3.4. Find the value of a.

a=1.6

Linear Functions

100

Find the slope of the line that passes through (-4, 5) and (2, 1)

-2/3

200

Write the equation of the line that goes through the point (0, 4) and has a slope of 2.

y=2x+4

300

The slope of a line is 4 and it passes through the point (8, 2). What is the y-intercept.

-30

400

Write the equation of the line that passes through (-1, -2) and (0, 3)

y=5x+3

500

Write the equation of the line that goes through (3, -2) and (-6, -8)

y=(2/3)x-4