1. Chapter 7 Unit Question What are the components and applications of lines on the coordinate plane?

2. Open Learning Logs Date on Left…Section 7 – 8 on right You will need a ruler You will want a calculator

3. Write a paragraph about the information given in the graph below. Include some predictions about attendance in the years not shown on the graph. WARM UP 7 – 8

4. Section 8 How do we find a linear equation to fit a given set of data?

5. Homework Clicky

6. GOAL 1: Draw a line based on a scatterplot Scatterplot – a graph of individual dots Gold produced in the world from 1984 to 1992 YearTons 198417 198520 198622 198722 198830 198935 199039 199139 199242 Year (19xx) 84 85 86 87 88 89 90 91 92 45 40 35 30 25 20 15 10 5 0 Tons Now ask yourself… What points do my line pass through?

7. GOAL 2: find slope and y intercept of YOUR line Let’s pick (1988,30)

8. Predict how much Gold was mined in 2000 Which variable was years? HINT: Look at the GRAPH According to MY graph, 70 tons of gold were mined in 2000.

9. When was 10 tons produced in the world? Which variable was tons? HINT: Look at the GRAPH According to MY graph, 10 tons of gold were mined in 1982.

10. Put in the form y = m x + b X intercept: 4 Y intercept: -2 = (4, 0) = (0, -2) Let’s pick (0, -2)

11. Homework Do HoffmaSheet 7 – 8