Graph the function f(x)=4x-7

I'll give brainliest if you answer right : )

What is the rate of change of a line that passes through (2,-5) and (6,-2)?

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)