Question

3. (03.04 HC)Given a polynomial function f(x), describe the effects on the y-intercept, regions where the graph is increasing and decreasing, and thebehavior when the following changes are made. Make sure to account for even and odd functions.• When f(x) becomes f(x) - 3• When f(x) becomes -2. f(x)(10 points)

Answer 1

ANSWER and EXPLANATION

(A) f(x) - 3

=> y-intercept

The y-intercept of f(x) is f(0). This implies that the y-intercept of f(x) - 3 is f(0) - 3.

In other words, the y-intercept is 3 units less than the y-intercept of the original function, since the function is translated 3 units downward.

=> Regions where the graph is increasing and decreasing

The region where the function f(x) increases and decreases do not change since the function is only translated and there is no change in the size of the figure.

=> End behavior

The end behavior of the graph doe not change as well because there is no change in the form or size of the graph, it is only translated

(B) -2 * f(x)

=> y-intercept

The y-intercept of