First find the slope of the equation given which is 1/2 then apply this formula you will find ur answer
(Y-y1)=m(x-x1)
Answer:
Brianne gets 25.12 inches² of pancake.
Step-by-step explanation:
Assuming the pancake to be a circular shape.
If the pancake's distance from one side of the pancake to other side was 8 inches, then diameter of circle = 8 inches. It means radius = 4 inches.
Brianne cut her pancake in half to share with friend. It means Brianne gets half-circular shape. So we need to find area of half-circle.
Area of half-circle = (1/2)πr² = (1/2) x 3.14 x 4² = 1.57 x 16 = 25.12 inches².
Hence, Brianne gets 25.12 inches² of pancake.
As the general formular for a straight line is

m represents the gradient
c represents the point at which the line crosses the y axis.
Therefore you simply plug the numbers into the equation.

You can work out whether 2 lines are perpendicular by multiplying their gradients. The product of the gradient of perpendicular lines will always be -1.
If lines are perpendicular, M1× M2 = − 1
So you can rearrange the equation to get M2=-1/M1.
As they perpendicular they have to intercept at the same point on the Y axis therefore you get the equation