In order to join a dancing club, there is a $30 startup fee and a $4 monthly fee. Write an equation in slope-intercept form (y = mx + b) that models this situation.
y = 4x + 30
100
What sign is this? >
Greater Than
100
How many equations are there in a system of equations?
2
200
(1,7) and (2,14)
7
200
What is the rate of change?
The Slope
200
In order to join an online learning community, there is a $20 startup fee and a $5 monthly fee. Write an equation in slope-intercept form that models this situation.
y = 5x + 20
200
How do you know if a function is quadratic?
The equation has x^2 in it
The graph is a parabola
200
What is the Axis of Symmetry of a Quadratic Function?
The line that cuts the graph in 2 symmetrical pieces
300
(-6,-12) and (-9,-4)
-8/3
300
3x - 9y = 27
1/3
300
Suppose that a bike rents for $4 plus $1.50 per hour. Write an equation in slope-intercept form that models this situation.
y = 1.50x + 4
300
How do you multiply 5x+4 and 4x-4?
Make a Box
300
Draw an example of a graph of a linear function
Line
400
(-1,0) and (5,0)
0 Slope
400
6x - 2y = 12
3
400
What do the m and b represent in y = mx+b?
m = Slope
b = Y-Intercept
400
How do you know that a function is Exponential?
The exponent is a variable
400
Draw an example of a Quadratic Function.
Parabola
500
(-18,-6) and (18,6)
1/3
500
7x + 12y = 144
-7/12
500
Coach Ervin has 72 pencils. Students take 6 pencils from his room each day. What equation shows the number of pencils that he has left after x days?
y = -6x + 72
500
If you have y < 2x+4, which side of the line would you shade?