Which of the following is the vertex of the function? y = x2 - 14x + 13
A. (1, 0)
B. (3, -20)
C. (5, -32)
D. (7, -36)
Stacey Warren - Expert brainly.com
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Then I take half the x coefficient and square it. Then I add and subtract that number
Then I bring the minus number out of the brackets
Now, what we have done is forced the brackets to be a perfect square. So we can factor
And just simplify
Now that it is in vertex form, we can see that the vertex is (7,-35)
Just remember...that in the step where we bring the negative 49 out of the brackets, if there is a number in front of the brackets, you would have had to multiply the -49 by that number when you bring it out.