There’s two lines, one with a slope of -2 and another with a slope of 2. are they perpendicular?
! : )

No they are not perpendicular

Explanation:

for two lines to be perpendicular, the slopes have to opposite signs AND reciprocals of each other. So the slope of the first line would have to be -1/2 or the slope of the second line would have to be 1/2 for the two lines to be perpendicular

d

step-by-step explanation:

by observation, we can see that the the graph is simply the graph of y = |x| that has been shifted 4 units downwards and 3 units to the left.

we can recognize in choice d :

y = | x + 3 |   - 4 (rewriting in general form)

y = | x - (- 3) |   - 4

the "-4 " term means   that the graph has been shifted by 4 units in the negative y direction

the "-3 " term means   that the graph has been shifted by 3 units in the negative x direction

this matches our observation of the graph described above.

i belive those are the ones that are under 90 degreese.