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The general equation of a circle in the Cartesian coordinate system is (x-a)2 + (y-b)2 = r2. The point (a,b) represents the center of the circle and the value of r represents the radius of the circle. More »

www.reference.com Math Algebra

To find the perimeter of a circle, also known as the circumference, plug the dimensions of the circle into the formula ((pi)(d). This formula stands for pi (approximately 22/7) times the diameter of the circle (d). More »

www.reference.com Math Geometry Shapes

Find the equation of a circle using the formula (x-h)squared+(y-k)squared=r squared. Know that h and k represent the coordinates for the center, with h being the x value, k being the y value and r being the radius. More »

www.reference.com Math Geometry Shapes
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A slope intercept calculator is a tool used to determine the slope-intercept form of an equation for a line passing through two points on a Cartesian coordinates plane. Other uses include calculation of the slope itself ... More »

www.reference.com Math Algebra

The graph of a linear equation forms a straight line, while a non-linear equation's graph does not form a straight line.Most equations can be graphed on a Cartesian coordinate plane using the variables x and y. More »

www.reference.com Math Algebra

A vertical intercept is a point where a line crosses the vertical axis, or y-axis, on the Cartesian coordinate plane. When evaluating a function, the vertical intercept can be found by setting the input, or x value, to z... More »

www.reference.com Math Algebra

To solve an algebra problem, identify the variable for which you are solving, isolate the terms containing that variable, and then solve the equation by isolating the variable itself. Check your work by plugging your ans... More »

www.reference.com Math Algebra