Question

Price of Bottles8What is the slope ofthe line?76[?]5Price ($)3.2Give your answer as1a fraction in simplestform.o 2 7 91 2 3 4 5 6 7 8 9Number of Bottles

Answer 1

The slope, m of a line that passes through two points (x₁,y₁) and (x₂,y₂) is given by the slope formula:

`m=(y_2-y_1)/(x_2-x_1)`

Notice that the given line (from its graph) passes through the points (0,0) and (2,1).

Hence, substitute (x₁,y₁)=(0,0) and (x₂,y₂)=(2,1) into the slope formula:

`m=(1-0)/(2-0)`

Simplify the expression for the slope:

`m=(1)/(2)`

The required slope of the line is 1/2.