Precal 1st Semester Exam Review Part B

Factoriiiiiing

100

25x⁴ - 5x²

5x²(5x² - 1)

200

x² - 100

(x + 10)(x - 10)

300

x³ - 64

(x - 4)(x² + 4x + 16)

400

x² + 25

Prime

500

4n² + 37n + 40

(n + 8)(4n + 5)

Solving Quadratic Equations

100

t² - 9t = -14

{7,2}

200

9x² = 4

{ - 2/3, 2/3 }

300

3x² + 6x - 24 = 0

{2, -4}

400

x² + 25 = 0

{-5i, 5i}

500

n² + 10n = -6

{-5 - sqrt 19, -5 + sqrt 19}

Misc. Equations

100

3/x +5/2 = 1/4

{-4/3}

200

l 10x - 5 l = 3

{4/5, 1/5}

300

sqrt (6x + 5) = 8

59/6

400

Solve for y:   -8x - 9y = 7

y = -8/9x - 7/9

500

Solve for I:   E = IR

I = E/R

Misc.

100

Find the midpoint of endpoints (2,4) and (6,8)

(4, 6)

200

FInd the equation of a circle whose center is (1,-2) and a radius of 3

(x - 1)² + (y + 2)² = 9

300

Find the y intercept for f(x) = x⁵ - 9

-9

400

Determine the slope of the line that passes through (2,5) and (-2, -2)

What is 7/4

500

Write the equation 3x = -4y + 12 in slope-intercept form

y = - 3/4 x + 3

The Hartley's

100

What is our dog's name

Piper

200

What is Mr. Hartley's favorite past time?

Fishing

300

What are the 3 kinds of math teachers?

Those who can count and those who can't.

400

Name two of the schools Mr. Hartley taught at before Gaston Christian.

Tryon Elem, North Gaston, Hunter Huss, Forestview

500

In wht year did Mr. Hartley graduate from High School?

1975