Which graph shows this system of equations?
2 answers:
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Answer:
x = ± 10
Step-by-step explanation:
To solve the equation let y = 0 , that is
0 = 100 - x²( add x² to both sides )
x² = 100 (I take the square root of both sides )
x = ± = ± 10
Then solution is x = - 10, x = 10