Find f(3). f(x) = x2 + 5x - 9 the equation y = 2x + 1 is changed to y = 2x - 1. how does this change the graph of the line? a) the original line will shift down 1 unit. eliminate b) the original line will shift left 1 unit. c) the original line will shift left 2 units. d) the original line will shift down 2 units.

f(x)=15

D

Step-by-step explanation:

f(x)=x2+5x-9

f(3) means to substitute 3 for x in the equation.

3^2+5(3)-9

9+15-9

f(x)=15

y=mx+b

b is the y intercept, so changing it to -1 would shift the line down 2 units. you

c

step-by-step explanation:

it would be see because your formula is f(x)=6x, so 6 times 1 is 6 and you go on and the best answer is c.