The point (5, 12.3) lies on the graph representing a proportional relationship. Which of the following points also lie on the same graph? Select all that apply. a
(1, 2.46)

b
(11, 27.06)

c
(3, 7.38)

d
(1.5, 4)

e
(2, 5)
please help!!

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.