In the function. Y+3=(2x)^2+1 what effect does the number 2 have on the graph as compared to the graph y=x^2 A. it stretches the graph vertically by a factor of 2

B. It stretches the graph horizontally by a factor of 2

C. It shrinks the graph vertically to 1/2 the original height

D. It shrinks the graph horizontally to 1/2 the original width

C

Step-by-step explanation:

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

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