Question

Solve the following system of equations and show all work.

y = 2x2
y = –3x −1

Answer 1

@mathmate

Answer 2

\[y=2.x^{2}\]?

Answer 3

no y=2x^2

Answer 4

set the y's equal and solve for x then substitute this value in one of the expressions for y to get the value of y

Answer 5

Use comparison:
y=2x^2
y=-3x-1
Since they are both y, they are equal, so
put 2x^2=-3x-1, or transposing,
solve
2x^2+3x+1=0 (by factoring) to solve the problem.