Cody was 165cm, start text, c, m, end text tall on the first day of school this year, which was 10%, percent taller than he was on the first day of school last year. How tall was Cody on the first day of school last year?

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system