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)

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

no because after the troops were pulled many blacks were killed by hangings lynchings and other cruel ways which in a way interrupted the reconstruction of the south and differed from the way abraham lincoln had an idea of reconstruction