The x-intercept of a positively-sloped line is -5, and the area of the triangle formed by the line, the x-axis, and the y-axis is 15. What is the slope of the line?
The base of the triangle = 5
To find the height
Area = (1/2) (5) (height)
15 = (5/2) (height)
15 (2/5) = height
6 = height........this is the y interecept
Intercepts are (-5,0) and (0 , 6)
Slope of line = ( 6 - 0) / ( 0 - -5) = 6 / 5