1B - Percents & Graphing Quiz Review

Set up two fractions, with an = in between:

1. the percent divided by 100

2. "is" divided by "of"

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Then, cross multiply to solve for X.

If you don't know a number that should go in one of the spots, put an X there instead.

Percentages Questions

Take the x-values in the table, and substitute that number for x. Then solve for y. Your answer should be a number. ​

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Your final answers will be numbers in the y-column

Filling out an x-y table:

An Ordered Pair (x, y) tells you where to go from the origin (center of the graph). X values tell you to go left/right first, then the Y values tell you to go up/down. ​​

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Always label your points!

Graphing Points

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There are 4 kinds of slope: ​

1. Positive (up to the right)

2. Negative (down to the right)

3. 0 Slope (horizontal)

4. Undefined (vertical)​

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We always "read the slope" like you read a book - - from left to right!

​Slope

Two methods:

1. Count the squares up down, divided by the number of squares to move to the right

2. Use the Slope Formula (at the right)​

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When using Slope Formula - be careful with the negatives!

​Finding Slope