Answer:
Slope is 20
Y-intercept is 60
The slope is 20 because the cost increases by 20 dollars per class.
Explanation:
The equation for a line is y=mx+b
m=slope
b=y-intercept
You can find the y-intercept by finding where the line intersects the y-axis (vertical line)
y=20x+60
The slope is 20 because the cost increases by 20 dollars per class.