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Posted by **LISSETT** on Sunday, December 16, 2012 at 10:23pm.

a. the vertex

b. the axis of symmetry

c. the intercepts

d. the domain

e. the range

f. the interval where the function is increasing, and

g. the interval where the function is decreasing

h. Graph the function.

y=x^2+4x

- college algebra -
**Anonymous**, Sunday, December 16, 2012 at 10:33pmThe answer to this question is 0.

- college algebra -
**Reiny**, Sunday, December 16, 2012 at 10:52pmchange it to the standard form

y = a(x-p)^2 + q , by completing the square

y = x^2 = 4x

= x^2 + 4x**+ 4 - 4**

= (x + 2)^2 - 4

All the above can now be answered readily.

The form y = a(x-p)^2 + q

should be in your text or in your notes from class.

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