SOLVE GRAPHICALLY
y=x²-3x-4
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Answer:
Draw the parabola using the points (-4, 0), (-3, -4), (-2, -6), (-1, -6), (0, -4), (1, 0), (2, 6), (3, 14), (4, 24).
To solve: x2 + 3x – 4 = 0 subtract x2 + 3x – 4 = 0 from y = x2 + 3x – 4,
The points of intersection of the parabola with the x axis are the points (-4, 0) and (1, 0), whose x – coordinates (-4, 1) is the solution, set for the equation x2 + 3x – 4 = 0.
Answered by
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the answer of y=x²-3x-4 is
x=3
and
y=4.
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