SOLUTION: For the quadratic function f(x) = x^2 + 2x -8 Find:
a. THe axis of symmetry and the vertex.
b. THe x-intercepts and y intercepts.
c. The domain and range.
d. Does the f
Question 181398: For the quadratic function f(x) = x^2 + 2x -8 Find:
a. THe axis of symmetry and the vertex.
b. THe x-intercepts and y intercepts.
c. The domain and range.
d. Does the function have a maximum or minimum value.
You can put this solution on YOUR website! For the quadratic function f(x) = x^2 + 2x -8 Find:
a. THe axis of symmetry and the vertex.
b. THe x-intercepts and y intercepts.
c. The domain and range.
d. Does the function have a maximum or minimum value.
:
first lets complete the square
:
:
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vertex is at (-1,-9)
axis of symmetry is x=-1
:
y intercept is found by setting x to zero--->y=0+0-8
so y intercept is -8: (0,-8)
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x intercept is found by setting y to zero--->
:
x intercepts are 2 and -4: (2,0) and (-4,0)
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domain is all real numbers: range is all real
:
function has a minimum value:
:
(