Question

Using the graph of f(x) = x2 as a guide, describe the transformations, and then graph the function. g(x) = 4.2x2

g is a vertical compression of f by a factor of 4.2

g is a horizontal stretch of f by a factor of 4.2

g is a vertical stretch of f by a factor of 4.2

g is a horizontal compression of f by a factor of 4.2

Answer 1

Can someone explain this to me

Answer 2

do you have a graphing utility?

Answer 3

what do you mean like a graphing calculator?

Answer 4

for f(x) = ax^2,

a stretches the graph of x^2 vertically if a>1.

If a is 0<a<1, the graph is compressed vertically

Answer 5

question what about Horizontally how will you know that?

Answer 6

vertical stretch = horizontally compressed

vertically compressed = horizontally stretched