PLEASE HELP ME ASAP - WILL GIVE BRAINLIEST - 20 POINTS! THANKS!
2 answers:
Answer:
A: f^-1(x) = (x - 5) / 2
Step-by-step explanation:
To find the inverse of a function, exchange x and y then solve for x
y = 2x +5
Exchange x and y
x = 2y +5
Solve for y
Subtract 5
x-5 = 2y +5-5
x-5 = 2y
Divide by 2
(x-5)/2 = y
The inverse is (x-5)/2
Answer:
A
Step-by-step explanation:
You switch the y and x and solve for y.
y = 2x + 5
becomes
x = 2y + 5
Subtract 5 on both sides.
x - 5 = 2y
Divide 2 on both sides.
(x - 5) / 2 = y
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