Kristine M.
asked • 05/01/23A student graphs the function f(x) = 2(4)x using a graphing calculator. The student then replaces the 2 in the equation with an 8. Which best describes the change the student sees when graphing the new function?
O The graph of the new function will be vertically shifted up 4 units when compared to the previously graphed function.
O The graph of the new function will be vertically shifted up 6 units when compared to the previously graphed function.
O The graph of the new function will be vertically stretched by a factor of 4 when compared to the previously graphed function.
O The graph of the new function will be vertically stretched by a factor of 6 when compared to the previously graphed function.
Neera J. answered • 05/09/23
Elementary and Middle School Math Tutor
when f(x) = 2(4)x
f(0) = 2(4)0 = 2 x 1 = 2
f(1) = 2(4)1 = 2 x 4 = 8
f(2) = 2(4)2 = 2 x 16 = 32
f(3) = 2(4)3 = 2 x 64 = 128
when f(x) = 8(4)x
f(0) = 8(4)0 = 8 x 1 = 8
f(1) = 8(4)1 = 8 x 4 = 32
f(2) = 8(4)2 = 8 x 16 = 128
f(3) = 8(4)3 = 8 x 64 = 512
So, every f(x) value for function 8(4)x is 4 times of value fr function 2(4)x
So, 3rd option is correct.
Raymond B. answered • 05/01/23
Math, microeconomics or criminal justice
3rd choice stretched vertically by a factor of 4 (8/2)
Peter R.
05/01/23
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Kristine M.
This was incorrect. I asked my teacher and she said the answer was the 2nd choice.05/01/23