For the numbers 2 through 9 on a telephone keypad, draw two mapping diagrams: one mapping numbers onto letters, and the other mapping letters onto numbers. Are both relations functions? Explain.

Aquadratic function f(x) has a turning point at (3,-7). what is the turning point of -f(x)?

50 ! pls ! 12.  building codes regulate the steepness of stairs. homes must have steps that are at least 13 inches wide for each 8 inches that they rise.

a. discuss how to find the slope of the stairs.
b. describe how changing the width or height affects the steepness of the stairs.

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)