Slope: Take two points from the graph, and do y-y, over x-x.
for ex. (1,2) and (2,4) do 4-2 over 2-1. your slope is 2/1= 2
y-intercept: find the one point on the graph that is exactly on the y-axis.
for ex. (4,0)= your y-intercept is 4
If a=0, then the denominator is equal to 0. Since you cannot divide by zero, you are not allowed to do this.
Hope This helps!
80 x 5 = 400
32 x 5 = 160
so you have about 160 <span>defective bulbs</span>
The y-intercept is 2 and the Slope is 2/4 but if you simplify that, it will be 1/2.
