Use the quadratic formula to find the roots: -3x^2 + 27x = 42

x=2, x=7

Step-by-step explanation:

-3x^2+27x=42

x^2-9x=-14

x^2-9x+14=0

x*(x-2)-7(x-2)=0

(x-2)*(x-7)=0

x-2=0

x-7=0

x=2

x=7

both graphs increase on their domain

neither graph has a y-intercept

step-by-step explanation:

the following points can be visualized easily from the graph

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8