Devon wants to write an equation for a line that passes through 2 of the data points he has collected. the points are (8, 5) and (–12, –9). he writes the equation
7x – 10y = 3. is this a good model? explain your reasoning.

(8,5)(-12,-9)
slope = (-9-5) / (-12 - 8) = -14/-20 = 7/10

y = mx + b
slope(m) = 7/10
(8,5)..x = 8 and y = 5
now we sub and find b, the y int
5 = 7/10(8) + b
5 = 56/10 + b
5 - 56/10 = b
50/10 - 56/10 = b
-3/5 = b

equation is : y = 7/10x - 3/5...but we need it in standard form

y = 7/10x - 3/5
-7/10x + y = -3/5
7x - 10y = 6

no, 7x - 10y = 3 is not a good modelbecause neither of ur points, when subbed in, will make this equation true

D) the x-intercept represents adam's commission pay when he had zero total sales