Please Help! A. It stretches the graph horizontally by a factor of 3. B. It shrinks the graph horizontally to 1/3 the original width. C. It stretches the graph vertically by a factor of 3. D. It shrinks the graph vertically to 1/3 the original height.

the solution is the point

step-by-step explanation:

we have

> equation a

> equation b

adds equation a and equation b

substitute the value of x in equation b to find the value of y

the solution is the point

15.36 per mile

but forgot to round

i am pretty sure

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)