Question

What is the relative maximum and minimum of the function?

f(x) = 2x^2 + 28x - 8
A. Minimum Value: -106 Range y > -7
B. Minimum Value: -7 Range y > -7
C. Minimum Value: 7
Range y > 7
D. Minimum Value: -106 Range y > -106

Answer 1

Anyone?

Answer 2

do a quadratic equation

Answer 3

Could you show me how?

Answer 4

http://www.statisticslectures.com/images/quadeq1.gif

Answer 5

http://2012books.lardbucket.org/books/beginning-algebra/section_12/6b63069915d221ab3f6b40d66f81135c.jpg

Answer 6

Oh okay! but how do you plug in A B C

Answer 7

second pic

Answer 8

What do you mean? of what?

Answer 9

of the equation you posted

Answer 10

a is 2
b is 28 and c is -8

Answer 11

Ohhh okay.

Answer 12

then you do the derivative of a function
and you'll say that f'(x)=0
or y'=0 and find x, that's your min value