SOLUTION: Find the x-intercepts and y-intercept of y = -x^2 + 3x + 4. Sketch the curve, using the x-intercepts and y-intercept to help you.

Question 749770: Find the x-intercepts and y-intercept of y = -x^2 + 3x + 4. Sketch the curve, using the x-intercepts and y-intercept to help you.
Answer by josgarithmetic(39614) (Show Source): You can put this solution on YOUR website!
Find y intercept using x=0. , so you have (0,4).

is the factored form of the given function which you can also rewrite as:
.
The value of y will be 0 when or when .
The x intercepts are then (-1,0) and (4,0). Note also, the maximum point occurs at , the parabola opens downward.

Compare that information to the graph:

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