Answer:
y = -½x + 3
Explanation:
The equation of a line in slope-intercept form is
y = mx + c
where m is the gradient (slope) and c is the y-intercept
We can find the gradient and intercept from the two points on the diagram
The points are:
(0, 3) and (4, 1)
The y-intercept is when x = 0
we are already given this point so
c = 3
now we can use our other point to find m. So:
1 = 4m + 3
-2 = 4m
-½ = m
Now we can put both variables into our slope-intercept form
y = -½x + 3