Question

What is the vertex of the graph of y = –|2x + 4|+ 3?

(–2, –3)

(–2, 3)

(2, –3)

(2, 3)

Answer 1

can you help me pretty please ?

Answer 2

you want the x value that makes the "stuff" inside the absolute value | | be zero
when that happens, the y value will be 3

Answer 3

i dont understand ?

Answer 4

can you explain

Answer 5

First, do you know what they mean by *vertex* ?

if you plot this equation
y = –|2x + 4|+ 3
the vertex is where it "changes direction"

see
http://www.wolframalpha.com/input/?i=plot+y+%3D+ –%7C2x+%2B+4%7C%2B+3

Answer 6

It changes direction at the spot where
–|2x + 4| is zero
in other words, where 2x+4 is 0

you could write this as
2x+4 =0
and "solve" for x
add -4 to both sides
2x +4 -4 = -4
the +4 and -4 add up to 0, so this is the same as
2x + 0 = -4
adding 0 to something does not change it, so this is
2x = -4
divide both sides by 2
x = -4/2
that simplifies to
x= -2

Answer 7

Now i understand which one it be (–2, –3)

(–2, 3)

(2, –3)

(2, 3)

Answer 8

??

Answer 9

Now i understand

good

Answer 10

what would the anser be

Answer 11

answer