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Warm up r = -3 k = -3 x = – 6r = 2r k – 5 = 7k + 7

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Presentation on theme: "Warm up r = -3 k = -3 x = – 6r = 2r k – 5 = 7k + 7"— Presentation transcript:

1 Warm up r = -3 k = -3 x = 2 1. 12 – 6r = 2r + 36 2. 3k – 5 = 7k + 7
Solve – 6r = 2r + 36 2. 3k – 5 = 7k + 7 3. 2(x + 4) = 6x r = -3 k = -3 x = 2

2 The Distance Formula

3 D = 3.16 Example Find the distance between (1, 4) and (-2, 3).
Round to the nearest hundredths. D = 3.16

4 Example Find the distance between the points, (10, 5) and (40, 45). Round to the nearest hundredths. D = 50

5 3. Find the distance between the points. Round to the nearest tenths.
3.6

6 4. Find the distance between the points. Round to the nearest tenths.
3.2

7 Pythagorean Theorem

8 Pythagorean Theorem Word Problems
A square has a diagonal with length of 20 cm. What is the measure of each side? Round to the nearest tenths. x = 14.1 cm

9 Pythagorean Theorem Word Problems
Ashley travels 42 miles east, then 19 miles south. How far is Ashley from the starting point? Round to the nearest tenths. x = 46.1 miles

10 Pythagorean Theorem Word Problems
What is the length of the altitude of an equilateral triangle if a side is 12 cm? Round to the nearest tenths. x = 10.4 cm

11 Given 2 ordered pairs, it’s the AVG of the x’s and AVG of the y’s.
Midpoint Given 2 ordered pairs, it’s the AVG of the x’s and AVG of the y’s.

12 Midpoint Formula

13 (.5, 5.5) (5.5, 6) Find the midpoint. 1. (3, 7) and (-2, 4)

14 (8.5, 3.5) (2.5, 13) Find the midpoint. (3, -9) and (14, 16)

15 If M is the midpoint of AB, find B. A(-4,10) and M(8,6)
5. (20, 2)

16 Find the midpoint. 6. (1.5, 4)


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