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Quarks · Answer 1 · 2021-05-22T12:02:33+0000

Answer:

k = 3

Explanation:

f(x) = 112 - kx ------------------(I)

f(-3) = 121

In equation (I) substitute x = -3

112 - k*(-3) = 121

112 + 3k = 121

3k = 121 - 112

3k = 9

k = 9/3

k = 3