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jonny [76]
3 years ago
9

What are the verter and x-intercepts of the graph of the function given below? y=x2-2x-35

Mathematics
1 answer:
horsena [70]3 years ago
5 0

For x intercepts, plug in 0 for y.

               0 = (x^2) - 2x - 35

*factoring* = (x-7)(x+5)

x intercepts = 7,-5

As for the vertex, you can use the equation -b/2a for the x-coordinate of the vertex

so,

x = -b/2a = -(-2)/2 = 1

then just find the y value by plugging it back in to the equation.

y = ((1)^2) - 2(1) - 35

= -36

so, vertex is at (1,-36)

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