Unit 5: Day 6

Day 6: State and Define the Objective 

Students will be able to write the equation of a line given data points. 

This objective is referring to the equation, Y=MX+B. When given two points, it is possible to apply them to the equation so that you are able to find the equation of a line. 

Day 6: Pictures and Graphs that Represent Objective 

This is the equation used to find the y intercept. Y+_MX+B, B representing the Y intercept in the equation. 

This graph represents the equation of a line, given two points. As you can see, the line intercepts three points, although only two are necessary to find the line of best fit. You can also see the equation for the line of best fit at the top of the graph. You can find this equation using the slope intercept form.

The only ultimate difference between a point and a data point is that data points are real life situations. In most situations, the y- intercept is how much packaging costs, without any of the merchandise in it.

Quiz Time!

1. A tall Chai Tea from Starbucks costs $2.70 and has 12 ounces of tea, while a venti costs $3.35 with 20 ounces. Write the equation of the line.

2. At Yankee Candle, a candle that burns for 150 hours costs $27.99, while a candle that lasts 45 hours costs $17.99. Find the equation of the line.

3. At Dick's Sporting Goods, a 15 lbs kettlebell costs $39.99, while a 45 lbs kettlebell costs $89.99. Find the equation of the line. 

Key 

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