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# 5 2slope

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### Transcript

• 1. Warm - up
• Use 6x-y=7
• Solve for y using the x-values to the left.
• Then graph the linear equation
-3 -1 0 2 4 y x
• 2. 3x-y=7
• Use
• Solve for y using the x-values to the left.
• Then graph the linear equation
-16 -3 -10 -1 -7 0 -1 2 5 4 y x
• 3. Defining Slope
• When building a roof, carpenters must figure out the pitch, or slope of the roof.
• A 1:10 pitch means that for every inch raised, the roof extends 10 inches.
3 in 30 inches
• 4. Whatâ€™s the slope of the hill?
• If a hiker rises 200 feet in elevation every mile, what is the average slope of the mountain?
• 5. Graphs have slopes. To tell the slope of a line, we need to know how high it rises or sinks and how far it moves left or right.
• Use
• Solve for y using the x-values to the left.
• Then graph the linear equation
• 6. Slope as an equation.
• How high the slope rises or sinks is called the rise.
• How far the slope moves left or right is called the run.
• IMPORTANT!
• 7.
• 1) Find two points on the line.
• 2) How high does it rise?
• 3) How far right does it run?
• 4) Put the numbers into a ratio, or fraction.
Letâ€™s find the slope of this line. 3 4