Note Note to browsers This slope lesson is interactive and I have students use graph paper as they follow along This is formulated for the California High.

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Note Note to browser’s This slope lesson is interactive and I have students use graph paper as they follow along This is formulated for the California.

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Presentation transcript:

Note Note to browsers This slope lesson is interactive and I have students use graph paper as they follow along This is formulated for the California High School Exit Exam math standards

Slope

How do engineers build bridges?

How do engineers build roads?

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7% as a fraction?? Remember than any percent is a part of 100.

The grade of a road is the same as slope Here is the picture: 7 feet 100 feet

Slope of a line The slope measures the rise and run of the stairs beneath or above the line. 4 4

Slope of a line The stairs are all through the line and the same size.

Slope of a line Can I make a line if the stairs arent the same size?

Slope of a line (m) To find the slope, use the formula 4 4

Slope of a line (m) To find the slope, use the formula 4 4

Slope of a line (m) Find the slope of the following lines: 1 2 A) B) 2 3

Slope of a line (m) Is the slope positive or negative? Answer: Positive, Read from left to right

Try for yourself Draw 2 lines with the following slopes on your graph paper. A) B) Start anywhere on your coordinate plane.

Slope of a line (m) The last 2 lines had a positive slope, lets look at slopes with negative slopes

Slope of a line (m) We still use rise over run, except the stairs are underneath the line. 3 -2

Try for yourself Draw 2 lines with the following slopes on your graph paper. C) D) Start anywhere on your coordinate plane.

CAHSEE Standard 3.3 Graph linear functions, noting that the vertical change (change in y-value) per unit of horizontal change (change in x-value) is always the same and know that the ratio (rise over run) is called the slope of a graph.

What do you need to do? Identify the slope on a graph First find where the line goes through (intersects the grid lines) Draw a triangle and calculate the slope

What do you need to do? Decide if its a negative or positive slope Trace the triangle on the graph paper On the CAHSEE you can write on the test!

What do you need to do? Use the formula Rise is negative 1 Run is 2

Now its your turn Identify the slope on each line. First make points where the line intersects the grid Then calculate the slope If you finish early, then also identify where the line crosses the y-axis.

Released Question from CAHSEE

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