13 Write the pointslope form of the eqauation of the line sa
13.) Write the point-slope form of the eqauation of the line satisfying the conditions. Then use the point-slope form of the equation to write the slope-intercept form of the equation.
slope = -2/3, passing through (6,-2)
Solution
Point-slope form of the eqauation is y - y1 = m (x- x1)
Here the point = (x1, y1) and slope = m
(x1, y1) = (6, -2) and m = - 2/3
Plug the values in the form
y - (-2) = -2/3 (x - 6)
3 (y + 2) = - 2(x- 6)
3y + 6 = -2x + 12
3y = - 2x + 12 - 6
3y = - 2x + 6
Divide by 3 on both sides
y = (-2/3) x + 2 ( y = mx + b)
This is the slope-intercept form
