y=7-4x
Interchange the roles of x and y
x=7-4y
Solve for y
y=(1/4)(7-x)...this is the inverse
Now substitute x=-1
Isaiah W.
asked 06/26/21If f(x) = 7 − 4x,
find f −1(−1).
y=7-4x
Interchange the roles of x and y
x=7-4y
Solve for y
y=(1/4)(7-x)...this is the inverse
Now substitute x=-1
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