graph the absolute value

$$y=-2|2x+2|+4$$
$$y=a|x+h|+k$$
would a=slope?
what does 2x do to the graph?
I believe the vertex is at (-2,4)

Question

graph the absolute value

$$y=-2|2x+2|+4$$
$$y=a|x+h|+k$$
would a=slope?
what does 2x do to the graph?
I believe the vertex is at (-2,4)

anonymous · Answer

|dw:1358094884464:dw|

anonymous · Answer

to fnd the vertex, set the value between the lines equal to 0, so in this case it is 2x+2=0 so the x-coordinate is -1 not -2 because of the 2 in front of the x term.  your y-coordinate is correct  the -2 in front makes it twice as steep as if it didnt have a number in front (imaginary 1) and the negative flips it so it opens downward instead of upward.

anonymous · Answer

|dw:1358095131169:dw|

anonymous · Answer

so the slope would be down two  over one?

anonymous · Answer

@abb0t I'm reviewing algebra..........

anonymous · Answer

down 4 over 1 because it is -2|2x| so it is actually -4x if you want to think of it that way
-4|x+1| + 4

anonymous · Answer

oh ok thanks!