Question

Find the value of y so that the line passing through the 2 points has a given slope. I would greatly appreciate it if you would show your work.
(-1,5), (3,y) m=5
(5,7),(8,y), m=4/3
(2,-15),(5,y),m=4/5 Find the value of y so that the line passing through the 2 points has a given slope. I would greatly appreciate it if you would show your work.
(-1,5), (3,y) m=5
(5,7),(8,y), m=4/3
(2,-15),(5,y),m=4/5 @algebra 1

Answer 1

I'll do the first one to show you how to do them



The slope formula is

m = (y2-y1)/(x2-x1)


Since the points are (-1,5), (3,y), we know that x1 = -1, y1 = 5, x2 = 3, and y2 = y


So plug them all into the formula above to get



m = (y - 5)/(3-(-1))


m = (y - 5)/(3+1)


m = (y - 5)/4


Now plug in m = 5 (this is also given) to get


5 = (y-5)/4


Now solve for y


5 = (y-5)/4


5*4 = y-5


20 = y-5


20+5 = y


25 = y


y = 25

Answer 2

thx