Given the function f(x)=x^2 and k=3, which of the following represents the graph becoming more narrow? A. f(x)+k B. kf(x) C. f(x+k) D. f(k-x)

Question

asked Dec 11, 2019 20.6k views

1 Answer

LJ White · Answer 1 · 2019-12-16T21:38:43+0000

B

the spread of the graph of a parabola is determined by the multiplier k

the standard comparison is against k = 1

• If k > 1 then the graph narrows towards the y-axis

• If 0 < k < 1 then graph widens towards the x- axis