Question

#1 What is the vertex of y = |x + 1| ?
a. (–1, 0)

b. (0, –1)

c. (0, 1)

d. (1, 0)

Answer 1

c. (0, 1)

Answer 2

X + 1 = 0
X = 1

y = |x + 1|
y = |1 + 1|
y = |-1 + 1|
y = 0

is the vertex 1, 0

Answer 3

@greysica how come its not the other way around?

Answer 4

if x = 0 then y= |0| +|1|= 1

Answer 5

oh, okay

Answer 6

@ganeshie8 is this correct?

Answer 7

if x = 1 then y= |1|+|1|= 2

Answer 8

ohhh, i see now.

Answer 9

to find x-coordinate of vertex, equate the the thing in mod to 0

x+1 = 0
x = -1

Answer 10

to find y-coordinate of vertex, just plugin x = -1 in the equation

y = |x-1| = |1-1| = 0

so the vertex is (-1, 0)

Answer 11

ur steps in ur first reply are correct.
only u made a mistake during arithmetic

Answer 12

if x= -1 then y=|-1|+|1|= 2

Answer 13

yeah i see where i went wrong.

Answer 14

even i made a typo lol :

my above reply should read as :



to find y-coordinate of vertex, just plugin x = -1 in the equation

y = |x+1| = |-1+1| = 0

so the vertex is (-1, 0)

Answer 15

hope it makes more sense now :P

Answer 16

okay , I'm getting confuse

Answer 17

look at what he did. it makes sense.

Answer 18

:)

Answer 19

Hey, thanks a lot @maheshmeghwal9

Answer 20

http://www.wolframalpha.com/input/?i=y%3D |x%2B1|

Answer 21

sorry i m trying but i can't give the graph to
y=x+1
Plz u can try
actually my net problem:D

Answer 22

I did, it works!

Answer 23

:)

Answer 24

(: