Question

Hello! The question and rubric are below need some help on parts a, b, and c. Thank you!

Answer 1

Step 1

Given;

Step 2

A)

`\begin{gathered} Equation\text{ of a circle is;} \\ (x-h)^2+(y-k)=r^2 \\ (x-0)^2+(y-0)^2=((100)/(2))^2 \\ x^2+y^2=50^2 \end{gathered}`

B)

`\begin{gathered} x=h-p \\ x=0-70 \\ x=-70 \\ x=(1)/(4(-70))(y-0)^2+60 \end{gathered}`
`x=(1)/(-280)(y)^2+60`

C)