Question

Find the vertex, the line of symmetry, the maximum or minimum value of the quadratic function, and graph the function.

See the attachment.

Answer 1

its the maximum, differentiate the function twice, the result turns out to be negative, the condition for maxima(along with dy/dx=0)

Answer 2

ok so...

Answer 3

When the leading coefficient (coef. of x^2) of a parabola is negative, it is a maximum, and vice versa.

Answer 4

ok so did i pick the right one? and did i pick the right graph?

Answer 5

yes, you did

Answer 6

GREAT THX!!!