Answer:
y = x - 3
Explanation:
1. slope-intercept form: y = mx + b
given: m = 1; (-4, -7)
2. plug in the values from the given point [(x, y) --> (-4, -7)] into the linear equation of the slope-intercept form.
y = mx + b
-7 = 1(-4) + b
-7 = -4 + b
b = -3
3. construct the final equation in slope-intercept form.
y = mx + b
y = x - 3