 The halfway point on a line segment  The average distance  Example find the midpoint of (1, 5) and (3, -3) midpoint = (2, 1)

Find the distance between (2, 3) and (-1, 7)

 Parallel lines = same slope  Perpendicular lines = opposite reciprocal slope

 Example ◦ Find the slope of the line containing (1, 4) and (3, 8) x 1 y 1 x 2 y 2

The price of a vase and 6 roses is $15. The price of a vase and 12 roses is $27. What is the price of one rose? two points (6, 15) and (12, 27) The change in the slope represents the cost of one flower.

 Click on the protractor below to practice reading angles via the internet  You will be asked to draw an angle  Place the protractor over it  Make a guess and then check your answer

 Surface area— ◦ The area of all the faces of a solid  Volume— ◦ the amount an item can hold  L = length, W = width, H = height, B = area of base, b = length of base, n = number of faces, s=edge of a cube, s = slant height of face, r = radius Click for formulas

 The sum of the area of all faces  Click on the shapes below to find their surface areas  Click for video explanation CLICK for info No Link

 Click on each for information On volume Click for video explanation CLICK for info