Question

Solve the following system of equations and show all work. y = −x2 + 4 y = 2x + 1

Answer 1

Answer:

x=3/4,y=5/2

Step-by-step explanation:

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

substitute y=-x^2+4 as y  for y=2x+1

2x+1=-x^2+4, x=3/4(isolate "x")

x=3/4

substitute x=3/4 for 2x+1=-x^2+4

y=2*3/4+1

y=5/2

x=3/4, y=5/2

hope this helps!

Answer 2

Answer: y = 2.5 and x = 0.75

Step-by-step explanation:

y = -2x + 4

y = 2x + 1

We can use elimination to solve this equation.