Hard SAT Math Question 83 — Video Explanation | 1600.now

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For the given parabola

a x^{2} + b x + c

,

a

,

b

, and

c

are all constants. The

x

-intercepts of the parabola are at

(- 4, 0)

and

(k, 0)

. If

f (- 13) = f (15)

, what is the value of

k

?

Your Answer: