If you horizontally stretch the quadratic parent function, f(x)= x^2, by a factor of 4, what is the equation of the new function

Step-by-step explanation:

If the graph of the function  represents the transformations made to the graph of  then, by definition:

If the graph is stretched horizontally  by a factor

If the graph is compressed horizontally by a factor

In this problem we have the parent function And we know that it stretches horizontally by a factor of 4

Therefore

 and

The transformation is:

And the function is:

3.4 pizzas

step-by-step explanation:

given is a scatter plot showing number of pizzas sold during weeks for different issues of coupon

y represents number of pizzas sold and x number of coupons issued

y is marked verticaly and x horizontally

the trend line is given as

y =3.4x+43

this says that even when no coupon is issued pizzas sold will be 43

and rate of change of pizza sold for 1 unit of coupon = slope = 3.4

i.e. when x increases by 1 unit y increases by 3.4 units

hence for each additional coupon issued 3.4 pizzas more will be sold

the answer will be the last one