E.J. calls people at random to conduct a survey. So far, 40 calls have been
2 answers:
You might be interested in
They are perpendicular because when you change 2x+8y=16 to slope intercept form it becomes y= -1/4x+2 and the slope (-1/4) is the negative reciprocal of 4, which is the slope for your other equation.
Please comment if you have any questions :)
Please comment if you have any questions :)