in trying to calculate how much money could be saved by packing lunch, victoria recorded the amount she…
in trying to calculate how much money could be saved by packing lunch, victoria recorded the amount she spent on lunch each day. amount victoria spent on lunch according to the graph, what was the rate of change between wednesday and saturday?
Answer
Explanation:
Step1: Identify the formula for rate of change
The formula for rate of change between two points $(x_1,y_1)$ and $(x_2,y_2)$ is $\frac{y_2 - y_1}{x_2 - x_1}$.
Step2: Determine the values of $x$ and $y$ for Wednesday and Saturday
For Wednesday, let $x_1 = 1$ (assuming Wednesday is the first - day in our count), $y_1=4$. For Saturday, $x_2 = 4$, $y_2 = 7$.
Step3: Calculate the rate of change
Substitute the values into the formula: $\frac{y_2 - y_1}{x_2 - x_1}=\frac{7 - 4}{4 - 1}=\frac{3}{3}=1$.
Answer:
1