write the equation of the linear function that passes through the points (4, -5) and (-6, 3)

y = __x + __

1 answer

To find the slope of the line passing through the two points, use the formula:

m = (y2 - y1) / (x2 - x1),

where (x1, y1) = (4, -5) and (x2, y2) = (-6, 3).

m = (3 - (-5)) / (-6 - 4)
m = (3 + 5) / (-10)
m = 8 / -10
m = -4 / 5.

Now that we have the slope, we use one of the points (4, -5) and the slope to find the y-intercept:

y = mx + b,
-5 = (-4/5)(4) + b
-5 = -16/5 + b
-5 + 16/5 = b
-25/5 + 16/5 = b
-9/5 = b.

Therefore, the equation of the linear function that passes through the points (4, -5) and (-6, 3) is:

y = -4/5x - 9/5.