Question

For the straight line defined by the points (2,55) and (4, 87), determine the slope (m) and y-intercept?

Answer 1

Slope(m) = 16

Y intercept (c) = 23

Explanation:

Given:

Points : (x1, y1) = (2, 55)

(x2, y2) = (4, 87)

Using two point form to calculate slope:

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

`m = (87-55)/(4-2)`

m = 16

To find y intercept:

Take any one point ans slope :

Using slope point formula:

y = mx + c

87 = 16(4) + c

Solving for c:

c = 23