What is the rate of change of the liner equation below

Cherie measures and records the lengths and sizes of the same style of a sandal found at a shoe store. which equation can be used to determine the approximate shoe size, s, for a foot length of x inches? s = x – 2 s = 2x – 10 s = x + 6 s = 2x + 4

What is the slope of the line shown below?

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.