What is the equation in point-slope form and slope intercept form for the line given (-5,-4) (7,-5)?

1 Answer
May 27, 2018

Point - Slope form of equation is #color(maroon)(y + 4 = -(1/12) * (x + 5)#

Slope-Intercept form of equation is

#color(green)(y = -(1/12) x - (53/12)#

Explanation:

#m = (y_2-y_1) / (x_2 - x_1)#

#(x_1, y_1) = (-5,-4), (x_2,y_2) = (7,-5)#

Slope # = (-5+4) / (7+5) = -(1/12)#

Point - Slope form of equation is

#(y - y_1) = m * (x - x_1)#

#color(maroon)(y + 4 = -(1/12) * (x + 5)#

Slope-Intercept form of equation is

#y = mx + c#, where m is the slope and c is the y-intercept.

#y = -(1/12) * (x + 5) - 4#

#y = -(1/12)x - 5/12 - 4#

#color(green)(y = -(1/12) x - (53/12)#