Standard form of a linear equation is Ax + By = C, where A, B, C are constants.
So,
y-8 = 3(x+1)
y-8 = 3x + 3
substract 3 from both sides,
y-8-3 = 3x+3-3
y-11 = 3x
substract y from both sides,
y-y-11 = 3x-y
-11 = 3x-y
So, the standard form is 3x-y = -11
The focus it the point, so all you have to do is plot the focus on a graph. Then, draw a line to the point of origin and calculate the equation. This equation in slope intercept form would be y=-x+0
Answer:
D assuming the black dot means multiplied
Step-by-step explanation:
