what is the vertex of the graph of...?

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what is the vertex of the graph of...?

y= -3|1/9x + 5| -5
the coordinates: (x,y) values

2006-09-11 17:06:53 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

the | | are absolute value symbols

2006-09-11 17:11:09 · update #1

3 answers

The vertex is at the point where the expression in the absolute value sign is equal to 0.

1/9x+5=0
1/9x=-5
x=-45

So we have the x-coordinate of the vertex, now to find the y, you just need to sub x=-45 back into the equation to get
y=-5

Thus the vertex is at x=-45 and y=-5

2006-09-11 17:17:36 · answer #1 · answered by priestlake22 2 · 0⤊ 0⤋

(-5,-5)

2006-09-12 01:00:22 · answer #2 · answered by calvinandraj 1 · 0⤊ 0⤋

the trains would arrive at the same time

2006-09-12 00:16:56 · answer #3 · answered by strgoddss 3 · 0⤊ 0⤋