What is the equation of the line shown in this graph?

goes though the points (-4,1) and (2,1)

Iam trying to solve a linear equation for the shoe size of someone 84" tall taking into consideration example 1 is 69" tall with a shoe size of 9 and example 2 is 72 inches tall with a shoe size of 11. i understand that the equation should be y=mx+b and that on the graph the answer is (3,2) but i just don't understand how to create the equation to solve for 84-inches and 60-inches tall questions. after two days, i need .

What could explain what happened when the time was equal to 120 minutes

Write the expression 7x^3-28xy^2 as the product of 3 factors