Subtract and simplify 5/7-2/4

Ined this is due tomorrow and i dont know the answer can you find all the exponents

Atransformation t : (x, y) (x-5,y +3) the image of a(2,-1) is

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.