What is the length of the line?

Can someone me do math because i am having a breakdown rn because i don’t get it

The table below represents a linear function f(x) and the equation represents a function g(x): x f(x) −1 −5 0 −1 1 3 g(x) g(x) = 2x − 7 part a: write a sentence to compare the slope of the two functions and show the steps you used to determine the slope of f(x) and g(x). (6 points) part b: which function has a greater y-intercept? justify your answer. (4 points)

(-y to the power of 2 - 4y- to the power of 2 -6 y +3)