Question

according to the table, what was the rate of change between 2019 and 2020?
students per year

Explanation:

Step1: Recall the formula for rate of change

The formula for rate of change (slope) is $\frac{y_2 - y_1}{x_2 - x_1}$. Here, $x$ represents the year and $y$ represents the number of students. For 2019 ($x_1 = 2019$, $y_1=51$) and 2020 ($x_2 = 2020$, $y_2 = 68$).

Step2: Substitute the values into the formula

Substitute the values into $\frac{y_2 - y_1}{x_2 - x_1}$: $\frac{68 - 51}{2020 - 2019}$.

Step3: Calculate the numerator and denominator

The numerator is $68 - 51=17$, and the denominator is $2020 - 2019 = 1$. So, $\frac{17}{1}=17$.

Answer:

17