Use a graphing calculator to sketch the graph of the quadratic equation, and then give the coordinates for the x-
intercepts (if they exist).
y= -x2 + 15x - 56
a. (-7, 0); (-8,0)
c. (-7, 0); (8,0)
b. (7,0); (-8, 0)
d. (7,0); (8,0)

d. (7,0); (8,0)

Step-by-step explanation:

see attached.

we can see that the graph of y = -x² + 15x - 56 intersects the x-axis (i.e y = 0) at (7,0) and (8,0)

the reason why your question keeps getting deleted because this is not a school related question : )

i will answer your question though.

i never tried church's