Question

HELPP FASTTT PLEASEE HELP MEEE!!!!
1-2

x+1
1. If f(x) = find f-'(x)=
2
2
Y +1
y-1
b. 2y-1
c. 2x +1
d.
a.
e. 2x -1
2.
2

Answer 1

Answer:

1) 2x-1

2) 8 , 11, 11.3

Step-by-step explanation:

1) To figure out the inverse of a function , first change the F(x) to y

y = $\frac{x+1}{2}$

Then switch the x and y

x = $\frac{y+1}{2}$

Solve for y. Multiply by 2 both sides. Subtract 1 from both sides.

2) Use distance formula : d = $\sqrt{(x_{2}-x_{1}) ^{2} + (y_{2}-y_1)^{2} }$

the first two are easy because the same x value. so just calculate Δy

-2 - 6 = -8 When you square it it becomes positive 64 and square root it and it becomes 8.

the next is a Δx. same method. 8-(-3) = -11 Square and square root and you get 11.

last one use the formula. substitute values of x's and y's into equation and solve for d.