Calculate the coordinates of the points of intersection of the graph of y=|2x-3|-2 with the coordinates axes.
The answer shows that:
y=|2x-3|-2
When X=0, y=3-2=1
I don't get why it is 3, shldnt it be -3? And for modulus don't we have to do the positive and negative one when we take out the modulus?
Thks for yr help!
2 answers
It is +3 because of he | | surrounding the 2x-3. the | | mean absolute, anything in between the | | will result in a positive number.
when x=0, y=abs(2*0-3) -2
but abs(-3)=3
but abs(-3)=3