Question

Solve the system of equations.

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

Answer 1

A. no solution
B. (0.22, 1.85)
C. (179.28, 202.39)
D. (0.22, 1.85) and (179.28, 202.39)

Answer 2

@jvaleska87 do you know quadratic equations and their solution?

Answer 3

i have no clue! im so lost

Answer 4

no worries:) I'll help you

Answer 5

We have two equations:
\[y = -0.04x^2 + 8.3x\]
\[y = 1.12x + 1.6\]
we can substitute y from second to the first one
\[1.12x+1.6=-0.04x^2+8.3x\]
Do you get this step?

Answer 6

yes