Mr walls has assigned 42 math activities so far this this year each week he assigns 5 more activities. How many assignments will there be after 7 weeks

The input to the function is x and the output is y. write the function such that x can be a vector (use element-by-element operations). a) use the function to calculate y(-1.5) and y(5). b) use the function to make a plot of the function y(x) for -2 ≤ x ≤ 6.