Answer to Question #55816 in Algebra for Butch DeLoria

Question

1: In the function y+ 3(x + 1 )^2 + 7 , what effect does the number 7 have on the graph, as compared to the graph of the function y = x^2?

A: It shifts the graph 7 units to the right.
B: It shifts the graph up 7 units.
C: It shifts the graph 7 units to the left.
D: It shifts the graph down 7 units.

2: In the function y = -3x^2 + 1 , what effect does the negative sign have on the graph, as compared to the graph of y = x^2

A: It shrinks the graph horizontally by a factor of 3.
B: It stretches the graph horizontally by a factor of 3.
C: It shrinks the graph vertically by a factor of 3
D: It reflects the graph across the x-axis.