Question 273898
the a) answer is the slope and the b) answer is the y-intercept


find the slope first
___ the difference in the y-coordinates, divided by, the difference in the x-coordinates (rise over run)
___ make sure you take the difference in the same direction for both coordinates


in this case the slope (m) equals ___ (8 - 5) / (3 - 1) = 3/2 = 1.5


using the slope-intercept form of the line (y = mx + b), substitute one of the points to find the y-intercept (b)


5 = (1.5)1 + b ___ 3.5 = b


so the line (in slope-intercept form) is ___ y = (1.5)x + 3.5


yes, the calculator does work