CA - Unit 3 Review

Front

What is the standard form of a circle's equation?

Back

Front

How do you find the center and radius from the equation of a circle?

Back

To find the center (h, k) and radius r from the equation, rewrite the equation in standard form. The center is (h, k) and the radius is the square root of the constant on the right side.

Front

Back

Center: (-6, -9); Radius: 6.

Front

What is the formula to calculate the slope of a line given two points?

Back

Front

Calculate the slope of the line through points (-1, -4) and (1/2, -2).

Back

Slope: 4/3.

Front

What does it mean for two lines to be parallel?

Back

Two lines are parallel if they have the same slope and will never intersect.

Front

What does it mean for two lines to be perpendicular?

Back

Two lines are perpendicular if the product of their slopes is -1.

Front

How do you solve a system of linear equations?

Back

You can solve a system of linear equations using substitution, elimination, or graphing methods.

Front

Given the system: 5x + 18y = 18 and 5x - 3y = -3, find the solution.

Back

Solution: (0, 1).

Front

What is the general form of a linear equation?

Back