If a = (4,-5) and (7,-9), what is the length of line ab?

Which answer is it for it to be simplified completely?

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.

Write the equations in logarithmic form 10^3=1,000