PLEASE HELP. I NEEED THIS BY TOMORROW

Match the term on the left with its image or description on the right. match term definition diameter a) circle a and a line segment connecting points b and c which are on the circle. circumference b) circle a and a line segment connecting points b and c which are on the circle. radius c) a piece of the circumference of a circle secant d) two circles that share the same center. concentric circles e) the distance around a circle arc f) a segment between two points on a circle that passes through its center

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function