| A | B |
|---|
| What is the midpoint formula? | x1+x2 / 2 , y1 +y2 / 2 |
| What is the slope intercept equation of a line? | y = mx + b |
| The slope of a horizontal line. | 0 |
| The slope of a vertical line. | undefined |
| Two nonvertical lines are parallel if and only if their slopes are _____. | equal |
| Two nonvertical lines are perpendicular if and only if the product of their slopes is ____. | -1 |
| A(n) _______ of a segment is a line, ray, or segment that bisects the segment and is perpendicular to it. | perpendicular bisector |
| A(n) ______ is the set of all points in a plane that are an equal distance from the given point, the center, which is also in the plane. | circle |
| A(n) _____ diameter is a segment that passes through the center of a circle and whose endpoints lie in the circle. | diameter |
| A(n) ______ is a segment whose endpoints are the center and a point on the circle. | radius |
| When the center is on the origen, the equation of the circle is .... | x2 + x1 = r2 |
| In a plane, two or more circles that have the same center are called _____ circles. | concentric |
| The ___-axis is perpendicular to the x- and y-axes. | z |
| The position of each point in space is given by an _____ triple. (x,y,z) | ordered |
| In the three-dimensional coordinate plane, the ___-axis appears to extend out from the plane. | x |
| The axes intersect at the ______, the point (0,0,0). | origen |
| The coordinates of the vertices of a triangle are R(-2,4,-3), S (0,1,3), and T (-2,-3,-3). Is the triangle isosceles, equilateral, or scalene? | isosceles |
| Every point in the yz-plane has x-coordinate ___. | O |
| What is the slope of the line parallel to the line y = 5? | 0 |
| Give the most specific name for each quadrilateral with the given vertices. P(-2,3), O (3,4), T (4,-1), K (-1,-2) | square |
