What is the value of k in the function ƒ(x) = 112 - kx if ƒ(-3) = 121?
2 answers:
Answer:
k =3
Step-by-step explanation:
f(x) = 112 -kx
Let x = -3
f(-3) =112 -k(-3)
We know that it equals 121
121 = 112 +3k
Subtract 112 from each side
121-112 =112 -112 +3k
9 = 3k
Divide each side by 3
9/3 = 3k/3
3 =k
Answer:
hello :
put - 3 in f(x) you have : 112 - k(-3) = 121
solve 112 +3k =121
3k = 121 -112
3k = 9
k = 3
Step-by-step explanation:
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