Question

Please check my solution:
Find the absolute value of 3+4x
My solution:
-(3+4x) when x < 0
+(3+4x) when x >= 0

Answer 1

|3+4x|

Answer 2

find its vertex,

Answer 3

vertex = (-3/4, 0)

Answer 4

so, your solution should be :-

-(3+4x) when x < -3/4
+(3+4x) when x >= -3/4

Answer 5

see if that makes some sense

Answer 6

Got it! I saw your answer, and tried to do it myself.
3+4x becomes:
3+4x or -3-4x
3+4x = 0
4x = -3
x = 3/4

-3-4x = 0
-4x = 3
x = -3/4

Answer 7

^ exactly ! -3/4 is the turning point

Answer 8

Thanks! :)

Answer 9

np :)