For the equation f(x)=x²-2x-15, determine the following.
(a) Determine whether the graph of the given quadratic function opens up or down.
(b) Find the vertex (h,k) =
(c) Find the axis of symmetry.
(d) Find the x- and y-intercepts.
(e) Sketch the graph of the function.
2a
up
down
2a
(a) Does the graph of the function open up or down?
(b) The vertex is
(Simplify your answer. Type an ordered pair.)
(c) The axis of symmetry is
(d) Find the x-intercept(s). Select the correct answer below and, if necessary, fill in the answer box
to complete your choice.
A. The x-intercept(s) is/are x =
(Use a comma to separate answers as needed. Type an integer or a fraction.)
OB. There are no x-intercepts.
Find the y-intercept(s). Select the correct answer below and, if necessary, fill in the answer box to
10
Ay
20
16
12
48
F
பகானாகாED
12
A
OU
