Fun Tuesday in PreCalc

Equality

100

Solve: 4(2 - 3x) = 20

x = - 1

200

5x - 8/18 = 2/3

x = 2/9

300

-6y - 9 = 15

y = -4

400

Solve: 8y + 3 [ 4 + 5(y - x)] when x = -3 and y = 3

x = 126

500

Solve: 5(x - 2) = x - 12

x = -1/2

Mo' Algebra

100

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

No

200

Algebra: simplify: 3(6wd - 3) + 3wd 

Algebra: 21wd - 9 

300

Write the rate of change given 2 points 

( -8, 2) and (1, 3)

1/9

400

Write the slope given 2 points 

(7, 3) and (2, 2)

-1/5

500

 Evaluate.  49 /7 - 16

-9

Functions Well

100

Algebra: What is the slope-intercept of a linear equation

Algebra: y= mx + b

200

g(x) = 3x²+1. Find g(3)

28

300

Solve the system:

x + 2y = 13

-x + y = 5

(1,6)

400

What is the axis of symmetry of the function f(x)=x²+6x-1

x = -3

500

12x - 5y = 30

y = 2x - 6

(0, - 6)

Why Change?

100

Find the slope: y = 3x + 5

3

200

What is the slope of the following equation:

2x + 2y = 8

slope = -1

300

Write an equation of a line that has a slope of 3 and goes through the point (0,-8)

y=3x-8

400

 What's the slope of the line passing through (3,9) (5,4)

slope: -5/2

500

Write an equation of a line that passes through (3,2) and (-9,10).

y=-2/3x+4

Factor Me

100

Factor the GCF of 4x²-10x

2x(2x-5)

200

Factor x²-5x-36

(x-9)(x+4)

300

Factor 2x²-22x+60 

 

2(x-5)(x-6)

400

Factor 2x²-5x-7

(x+1)(2x-7)

500

Factor x³+3x²+2x+6

(x+3)(x²+2)

Mixed

100

Factor completely 

x² - 144

(x - 12) (x + 12)

200

What quadrant is the ordered pair ( -3, -2) in?

Quadrant III

300

solve  (2x -8) (3x+4)

6x² - 16x - 32

400

(4x³y⁴)³ /2x²y³

   32x⁷y⁹

500

2x + 4y = 12

4x - 6y = -18

(  0 , 3 )