Question

How do you graph `y=7sqrtx`, compare it to the parent graph and what is the domain and range?

Answer 1

see graph.

Domain of both functions is `[0,oo)`

Range of both functions is `[0,oo)`

Explanation:

`y=asqrt(bx -c) + d`

a = vertical stretch

so your equation: `y=7sqrtx`

a = 7
b = 1
c = 0
d = 0

so your graph will be the parent `f(x) = sqrtx` stretched vertically by a factor of 7

Domain of both functions is `[0,oo)`

Range of both functions is `[0,oo)`

here is the parent graph:

graph{sqrtx [-10, 10, -5, 5]}

And here is yours:

graph{7sqrtx [-9.96, 10.04, -0.52, 9.48]}