Hiya babes ;) stop whatchu doin nd help a angel out! how do you find or solve segment addition postulate angles?

Two different linear functions are shown below with two points given from each function. use slope-intercept form or point-slope form to find the equation of each. linear function a points: (–5, –2), (–5, 7) linear function b points: (7, –5), (–2, –5) function a has: the equation of line a is: function b has: the equation of line b is:

What is the slope of the line shown below?

Asap! i'm not good math and i'm lost.