When the function f(x) = 4(2)^x is changed to f(x) = 4(2)^x − 13, what is the effect?

There is no change to the graph because the exponential portion of the function remains the same.
The x-intercept is 13 spaces higher.
The y-intercept is 13 spaces lower.
All input values are moved 13 spaces to the left.

is it c

yes

No, it is not c. When the function f(x) = 4(2)^x is changed to f(x) = 4(2)^x − 13, the effect is that the y-intercept is shifted 13 units downward. Therefore, option c, "The y-intercept is 13 spaces lower," is the correct answer.

Yes, the effect of changing the function from f(x) = 4(2)^x to f(x) = 4(2)^x - 13 is that the y-intercept is 13 spaces lower. This means that for any given x-value, the corresponding y-value will be 13 units lower compared to the original function.