The linear function is
, with a slope
of -5 and a y-intercept
of -9.
To find the equation of the linear function in the form
where
is the slope and
is the y-intercept, we need to determine these values using the given table of values.
Let's calculate the slope
:
![\[ m = \frac{\text{change in } y}{\text{change in } x} \]](https://img.qammunity.org/2024/formulas/mathematics/high-school/d50svg9dfazedhr0jripsjdbd2j9y31sq1.png)
Using the values from the table:
![\[ m = (-9 - 1)/(0 - (-2)) = (-10)/(2) = -5 \]](https://img.qammunity.org/2024/formulas/mathematics/high-school/ze326y6vxlbxz83jwgz61dc5zt8sjeoyem.png)
Now that we have the slope
, we can use any point from the table to find the y-intercept
. Let's use the point (0, -9):
![\[ -9 = (-5)(0) + b \]](https://img.qammunity.org/2024/formulas/mathematics/high-school/o6djle93qkrmdx2qj83iwsq1k74silpv8y.png)
![\[ b = -9 \]](https://img.qammunity.org/2024/formulas/mathematics/high-school/4d0v4ewskxzwavw9pf36ghb6ihnl5e3sjh.png)
So, the equation of the linear function is:
![\[ y = -5x - 9 \]](https://img.qammunity.org/2024/formulas/mathematics/high-school/ituv8jsci1wwrgtlaq47bunh5fk82b3tqt.png)
In this equation, the slope
is -5, indicating that for every unit increase in
decreases by 5. The y-intercept
is -9, which is the value of
is 0.