Carmen H. answered 01/26/21
Patient Tutor Specializing in Algebra and Calculus
If you are stretching it vertically then you are making the function narrower which means you need to multiply the whole function by a factor greater than 1.
When you want to move the function to the left, then you need to add to x the specified value at each instance.
For this prproblem, let's first shift left, then stretch vertically.
F(x)=2√(x)-1
To shift left by 2, add 2 at each instance of x:
f(x)=2√(x+2)-1
To stretch vertically, multiple the whole function by 3:
3f(x)=3[2√(x)-1]=6√(x-1)-3
g(x)=6√(x-1)-3