Keisha makes a large sandwich for family picnic. She takes 1/2 of the sandwich to the picnic. At the picnic, her family eats 3/8
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Answer:
Step-by-step explanation:
So we want to find the equation of a circle with the center at (4,5) and which passes through the point (-3,5).
First, recall the standard form for a circle, given by the equation:
Where (h,k) is the center and r is the radius.
We already know that the center is (4,5). So, substitute 4 for h and 5 for k. Therefore, our equation is now:
Now, we need to find the radius.
Remember that our circle passes through the point (-3,5). In other words, when x is -3, y is 5. So, substitute -3 for x and 5 for y to solve for r. Therefore:
Subtract within the parentheses:
Square:
Square root:
Therefore, the radius is 7.
So, substitute 7 into our equation, we will acquire:
Square:
So, our equation is:
And we're done!