Example 2: Solve the system algebraically. Then check your answer graphically.
1 answer:
Answer: (-2, 1), (-4, -3)
Step-by-step explanation:
y = x² + 8x + 13
y = 2x+5
x² + 8x + 13 = 2x+5
x² + 6x + 13 = 5
x² + 6x + 8 = 0
x² + 2x + 4x + 8 = 0
(x+2)(x+4)=0
<u>x=-2 or x=-4</u>
y=2(-2)+5
y=-4+5
<u>y=1</u>
y=2(-4)+5
y=-8+5
<u>y=-3</u>
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