The archway of the main entrance of a college is modeled by the quadratic equation y=-x^2+6x the university is hanging a banner at an angle defined by the equation 4y=21-x. At what two points should the banner be attached

Question

campbell_st · Answer

you need to find the points of intersection of the 2 lines

so you are solving simultaneously

I'd take the 2nd equation and rewrite it as 

y = 21/4 - x/4

then equate the equations

$$21/4 -x/4 = -x^2 + 6x$$

and then solve for x. 

A really easy solution is to use graphing software and graph them, and find the points of intersection.

anonymous · Answer

Ok. Thanks

anonymous · Answer

The awnser was b

campbell_st · Answer

well given the answers weren't listed it irrelevant to me