Answer:
y=5/2
Step-by-step explanation:
To find the inverse, interchange the variables and solve for y.
f^-1 (x) = 4 + x/2
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➷ It would cross at (0, -1) or just -1
y = mx + c
The 'c' value in the equation is the y intercept
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Equation of a tangent line of a curve is:
y- y0 = f´ (x0) (x - x0 ). In this case: x0=1, y0=1
f´(x)=

(Derivation)
f´(x0)=

y - 1 = 1/2 ( x - 1 )
y - 1 = 1/2 x - 1/2
y = 1/2 x - 1/2 + 1
y =