what is the rate of change if x: 2.6, 3.2 and y: -6, 3 in a table

1 answer

To calculate the rate of change based on the given values of \(x\) and \(y\), you will want to determine how much \(y\) changes for a change in \(x\). The formula for the rate of change between two points \((x_1, y_1)\) and \((x_2, y_2)\) is given by:

\[ \text{Rate of Change} = \frac{y_2 - y_1}{x_2 - x_1} \]

Here, we can assign the values as follows:

  • From your provided values, let \(x_1 = 2.6\) and \(y_1 = -6\).
  • Let \(x_2 = 3.2\) and \(y_2 = 3\).

Now, substitute these into the formula:

\[ \text{Rate of Change} = \frac{3 - (-6)}{3.2 - 2.6} \]

Calculating the numerator:

\[ 3 - (-6) = 3 + 6 = 9 \]

Calculating the denominator:

\[ 3.2 - 2.6 = 0.6 \]

Putting it all together:

\[ \text{Rate of Change} = \frac{9}{0.6} = 15 \]

Therefore, the rate of change is \(15\).