To find the equation of a line in slope-intercept form (y = mx + b) that passes through the point (−5, 3) and has a slope of −1, we can follow these steps:
- Identify the slope (m): Given as −1.
- Use the point (−5, 3): Here, x = −5 and y = 3.
- Plug the values into the slope-intercept equation:
Starting with the general form: \[ y = mx + b \]
Substituting the slope: \[ y = -1x + b \] or \[ y = -x + b \]
Now, use the point (−5, 3) to find b (the y-intercept): \[ 3 = -(-5) + b \] \[ 3 = 5 + b \]
Now, solve for b: \[ b = 3 - 5 \] \[ b = -2 \]
So, the equation of the line in slope-intercept form is: \[ y = -x - 2 \]
The correct response is: y = −x − 2 (y equals negative x minus 2).