Answer:
f(x) = -5/3x + 5/3
Explanation:
if x = 4 ; f(x) = -5
if x = -2 ; f(x) = 5
f(x) = ax + b
-5 = 4a + b (1)
and
5 = -2a + b (2)
(1) + (2)
2a + 2b = 0
a = -b
(1) -5 = 4a - a
-5 = 3a
a = -5/3
Answer :
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