Evans- Algebra Review Test 2.1

Literal Equations

100

P = IRT 

Solve for T 

P/(IR) = T

200

y = 5x - 6 

SOlve for x.

y + 6/5 = x

300

y = mx + b 

Solve for b.

y/(mx) = b

400

A = 2brw 

Solve for w 

A/(2br) = w

500

A = 1/2(b₁ + b₂)h

Solve for h. 

(2A)/(b₁ + b₂) = h

Slope-Intercept

100

M = 8 b = 16 Write in Slope-Intercept Form

y = 8x + 16

200

m = -6 b = -16 Write in Slope-Intercept Form

y = -6x -16

300

y = x - 5 What is m and b Graph the line

m = 1 b = -5

400

y = 8 What is m and b Graph the line

m = 0 b = 8

500

y = -1/3x - 2 What is m and b Graph the equation

m = -1/3 b = -2

Point-Slope

100

y - 1 = 6(x - 5) What is the point and m Graph

(-5,-1) 6

200

y - 6 = -1/5(x + 5) What is the point and m Graph

(-5,6) -1/5

300

(y+8) = 2(x + 3) What is the point and m Graph

(-3,-8) 2

400

y + 3 =-1/2(x - 4) What is the point and m Graph

(4,-3) -1/2

500

y - 4 = 5(x + 4) What is the point and m Graph

-4,4 5

Standard to Slope Intercept

100

4x + 6y = 24

y = -4/6 + 4

200

-6x + 10y = 30

y = 3/5x + 3

300

5x + 8y = 64

y = 5/8x + 8

400

7x - 3y = 17

y = 7/3x - 17/3

500

4y + 2x = 18 

What is the slope? 

-1/2

Standard Form

100

2y + 6x = 12 What is the x-int and y-int

x-int = 2,0 y-int = 0,6

200

3y + 5x = 15 What is the x-int and y-int Graph

x-int = 3,0 y-int = 0,5

300

5y + 2x = 20 What is the x-int and y-int Graph

x-int = 10,0 y-int = 0,4

400

4y + 8x = 6 Write in Slope-Intercept Form

y = -2x + 3/2

500

2y + 6x = 12 Write in slope intercept From

y = -3x + 6