Tan (0) is equal to 0
Sin (0) = 0
Cos (0) = 1
Tan = Sin/Cos
That means that Tan (0) = 0/1 or 0
You have to add 4 and 9 then drop your variable
Step-by-step explanation:
(9-4)/(5+7)= 5/12
y - 4 = 5/12(x + 7)
y - 48/12 = (5/12)x + 35/12
y = (5/12)x + 83/12