Exponents
Fun with Functions
Solving Algebraic Equations
Find the Slope
Ms. Butler's Choice
100
What is 72 x 76
78
100
Is it a function?
{(−1,8),(4,−7),(−1,6),(0,0)}{(−1,8),(4,−7),(−1,6),(0,0)}
No
100
-6b=-36
b=6
100
What does m stand for? What does b stand for?
y=mx+b
m=slope
b=y-intercept
100
34=2x-6
x=20
200
What is 123
1,728
200
What is the initial value?
y=5x+17
17
200
-7=h/2
h=-14
200
In order to join an online learning community, there is a $20 startup fee and a cost of $5 each month. What is the slope?
5
200
26+x4-22+x5
24+x9
300
(63)4
612
300
Is this a function?
Yes
300
13.8=2.3k
k=6
300
Suppose that a bike rents for $4 plus $1.50 per hour. What is the slope?
1.50
300
Cameron is designing a calendar as a fund-raising project for math class. The cost of printing is $500, plus $2.50 per calendar. Write an equation in slope-intercept form that models the total cost of printing the calendars.
y=2.50x+500
400
(4x3)3
43x9
400
Is this a function?
No
400
4.7=a/4
a=18.8
400
In order to become a member of the library, there is a $40 sign-up fee and a $2 monthly fee. Write an equation in slope-intercept form that models this situation
y=2x+40
400
(1.7x+5.32)/12=6
Round to the nearest hundredth
x=39.22
500
5(x2y3)4
5x6y7
500
{ (-1, -7), (-4, 3), (0, -8), (-1, -5), (2, -7) }
No
500
-13=2+c
c=-15
500
In order to join a karaoke club, there is a $30 startup fee and a $4 monthly fee. Write an equation in slope-intercept form that models this situation
y=4x+30
500
An airplane 30,000 feet above the ground begins descending at a rate of 2,000 feet per minute. Write the equation that represents this situation.
BONUS: Find the altitude after 5 minutes.
y=-2,000x+30,000