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Graph both functions to find the solution(s) to the system. Use the line tool to graph the line. Use the parabola tool to graph the parabola. Choose maximum or minimum point first and then a point on the
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Dec 12, 2019
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Graph both functions to find the solution(s) to the system. Use the line tool to graph the line.
Use the parabola tool to graph the parabola. Choose maximum or minimum point first and then a point on the parabola.
Mathematics
high-school
Kunok
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The graph shows solutions to be ...
(x, f(x)) = (x, g(x)) = (-2, 5), (2, -3)
_____
Analytically, it works well to find
g(x) -f(x) = 0
(x^2 -2x -3) -(-2x +1) = 0
x^2 -4 = 0
x^2 = 4
x = ±√4 = ±2
Then
f(-2) = -2(-2) +1 = 5
f(2) = -2(2) +1 = -3
Twxia
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Dec 17, 2019
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Twxia
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