Question

Solve the system of equations.

y = -0.04x2 + 8.3x
y = 1.12x + 1.6

A. no solution

B. (0.22, 1.85)

C. (179.28, 202.39)

D. (0.22, 1.85) and (179.28, 202.39)

Answer 1

\[y=-0.04 x ^{2} + 8.3x\] \[y = 1.12 x + 1.6\]
subtract the two equations from one another and solve the binomial equation.

Answer 2

so whats the answers

Answer 3

Did you try to solve it yourself?

Answer 4

yes can you tell me

Answer 5

If you subtract the two equations from one another you get\[y - y = -0.04 x ^{2} + 8.3x -1.12x.-1.6\]\[0 = 0.04x^2-7.18x +1.6\]

Answer 6

I would then plug in the different possible answers and see which one works.