Chapters 3 and 4 - Functions

3.3

100

What is the formula of slope?

y = mx + b

200

What is a method to find slope?

Bottom Top, Bottom Top or rise/over

300

Find the slope of the points (2,-3) (7,8)

11/5

400

Find the slope of the points (-4,-3) (-10,-9)

6/6 or 1

500

find the slope of the points (4,2) (7,6)

4/3

4.1

100

Graph the lines of (4,2) (7,6)

...

200

Graph the lines of Y=2/3x + 3

...

300

Graph the lines of 2x-y=5

2/1

400

Graph the lines of 5x+y=6

-5/1

500

M = 2/3  B = 8

2/3

4.2 Day 1

100

Find the equation to (-6,2) M=4

B = -22   Y=-4x-22

200

Find the equation to (3,-3) M=2

B = -9    Y=2x-9

300

Find the equation to (4,7) M= 1/3

B = 5 2/3    Y=1/3x+5 2/3

400

Find the equation to (2,5) M = 1/2

B = 6   Y=-1/2x+6

500

Find the equation to (6, -8) m = -3/4

B = -7/2   Y=-3/4x-7/2

4.2 Day 2

100

Find the equation for (3, 4) (5, 8) 

Y=2x+2

200

Find the eqaution for (4,-3) (2,3)

Y=-3x+9

300

Find the equation for (-7,-3) (-3,5)

Y=2x+11

400

Find the equation for (-1,3) (0,8)

Y=5x+8

500

Find the equation for (-2,6) (0,0)

y=-3x

4.3

100

In 1997 about 2.6 million girls competed in high school sports. The number of girls competing in sports has increased by .06 million per year since 1997. Write the equation.

Y=.06x+2.6

200

The band boosters are selling meals for $7 each. They bought $988 in ingredients. Write the equation. 

Y=-7x+988

300

A tour company charges $150 to have someone guide a whitewater rafting boat and $30 per person to go on the ride. Write an equation.

Y=150+30x

400

A tour company charges $150 to have someone guide a whitewater rafting boat and $30 per person to go on the ride. How much would they charge for 8 people.

$390

500

The band boosters are selling meals for $7 each. They bought $988 in ingredients.When will they break even?

X=142