b) Tony has no clue how to write the standard equation of a circle. Explain to Tony how to do this given Circle B has the equation x2 + y2 + 8x – 4y + 4 = 0.
Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
Linear Functions
A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
a) Given
b) Tony has no clue how to write the standard equation of a circle. Explain to Tony how to do this given Circle B has the equation x2 + y2 + 8x – 4y + 4 = 0.
c) How would Tony find the center and radius of the equation above?
d) Write the equation of a circle that has a center of (1,4) and point (5,1) on the circle.
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