How do you graph #y = | -1/4x -1|#?
2 Answers
graph{abs(-1/4x-1) [-10, 10, -5, 5]}
Explanation:
finding the point when y=0
then
when
when
both lines 'll be draw
finding y-intercept when x=0
when y=0
for
y-intercept is when x=0
x-intercept is when y=0
if x=0 then y=1
if x=-4 then y=0
if x=-8 then y=1 (as well)
Explanation:
Absolute value mirrors everything that is in negative numbers to the positive numbers.
I simply draw a net. Then put instead of x a number. For example:
x=0 then y=1
if x=-4 the y=0
Now you can draw a line that goes through this two points. The other part will be mirrored just like the right side. Let's see.
Let's put instead of x a number -8. Then y=1 just as for the x=0.
Hope it helps.
There is also a way to split this function into two(a bit useless for this particular example).
Hope it helps