Respuesta :
You have the slope and you have two points, so you can use the slope equation to find x.
[tex]b=\frac{(y_2-y_1)}{(x_2-x_1)} \\2=\frac{(15-5)}{(x-3)} \\2(x-3)=(15-5)\\2x-6=10\\2x=16\\x=8[/tex]
So your answer is x = 8.
Answer:
x =7
Step-by-step explanation:
slope m = ( y2-y1) / (x2-x1)
for points (3,5) and (x,15)
that will be m= (5-15)/(3-x)
so (5-15)/(3-x) =2
-10 / (3-x) = 2 / 1 cross multiply
-10 = 2(3-x) divide both sides by 2
-5 = 3 -x
x= 3+5 =8