Show if the following linesare parallel, perpendicular or neither. −3x + y= 4
6x + 18y = −1

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x