Solve the equation by factoring. 5z2 − 21z + 4 = 0

A.) z = 1 or z = 4

B.) z = or z = –4

C.) z = 1 or z = –4

D.) z = or z = 4

Use format,



Explanation:



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c

step-by-step explanation:

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).

i suppose it should be (y=2x-5)

step-by-step explanation: