Question

On a piece of paper, graph y = x2 + 4x - 5 and identify the y-intercept. Thendetermine which answer choice matches the graph that you drew andcorrectly identifies the y-intercept.

Answer 1

We have

`y=x^2+4x-5`

First, let's graph some points in order to graph the function

x=-4

y=(-4)^2+4(-4)-5=-5

point (-4,-5)

x=-2

y=-9

point (-2,-9)

x=0

y=-5

point (0,-5)

x=2

y=7

point (2,7)

x=4

then we graph the points, and we obtain the next graph

the y-intercept is the value of the coordinate y when the x-coordinate is zero, as we can see in the image the y-intercept is in the point in purple (0,-5)

the y-intercept is -5