Question

Use the graph to find the solutions to the system of equations.

Answer 1

x^2-y=4
2x+y=-1

Answer 2

2x+y=-1

re-arrange algebraically:
y = -1 -2x
y = -2x -1

graph:
it will start at -1 below zero at the origin
it will then go down with a slope of 2

Answer 3

x^2-y=4

re-arrange algebraically:
x^2 = 4+y
x^2 -4 = y
y = x^2 - 4

graph:
it will be at -4 lower at the origin
it is a quadratic function

Answer 4

also the quadratic term is positive, so it will be a quadratic function that's open from above and that goes into the positive y-direction

Answer 5

Okay thank you!