Solve the system of equations.

Question

anonymous · Answer

$$y = -0.04x ^{} + 8.3x $$
y = 1.12x + 1.6

anonymous · Answer

My choices: 
A. no solution 	
B. (0.22, 1.85) 	
C. (179.28, 202.39) 	
D. (0.22, 1.85) and (179.28, 202.39) 	
Is the answer A?

precal · Answer

are you sure that the first equation has 2 x's?

precal · Answer

btw choice A means that your two lines are parallel ie same slopes

anonymous · Answer

Oh sorry @precal the first equation is suppse to be $$y = -0.04x ^{2} + 8.3x $$

precal · Answer

|dw:1348533208471:dw|
you have two solutions

anonymous · Answer

Okay, @precal, So how do I find the answer

precal · Answer

I am using my graphing calculator

anonymous · Answer

Oh ok, I do not have a graphing calculator

precal · Answer

https://www.desmos.com/calculator here is a free one online

precal · Answer

choice A states they do not cross at all, not true 
choice B and C give one solution
choice D gives 2 solutions but they are a little off - happens when you use decimal solutions
I would go with D

anonymous · Answer

@precal, I got B on on the graphing calulator, how would i find the other part of D

precal · Answer

D is your solution, you need to find both points of intersection|dw:1348533731052:dw|