How do you write an equation in slope intercept form given (-4,10) (6,5)?
1 Answer
Mar 14, 2016
Explanation:
General equation of a line:
y = ax + b. Find a and b by writing that this line passing through the 2 points (-4, 10) and (6, 5) -->
10 = - 4a + b (1)
5 = 6a + b (2).
Subtract b from a -->
5 = -4a - 6a --> -10a = 5 --> a = - 1/2
b = 10 + 4a = 10 - 2 = 8
Line equation:
