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## Algebra I and Concepts

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**Algebra I and Concepts**Ch. 3 Test Review**Directions**• Get out a piece of paper, put your name and “Ch. 3 Test Review” at the top • As each slide appears, work through the problems shown. You may not finish them all, that is ok! Don’t rush, work through what you can. • When the answer slide is posted, check your answers, find and correct mistakes. Ask questions if necessary. • Finish any questions by looking up the review on my website • This will be turn in on MONDAY with your homework**Find the x and y intercepts of the lines graphed**X-int: (-5, 0) y-int: (0, 3) X-int: (7, 0) y-int: (0, 7)**Find the x and y intercepts of the following equations**1) -5x + 8y = -40 2) x – 3y = 15**Find the x and y intercepts of the following equations**1) -5x + 8y = -40 2) x – 3y = 15 X-int: (8, 0) x-int: (15, 0) Y-int: (0, -5) y-int: (0, -5)**Graph using the x and y intercepts**1) 3x – 4y = 12 2) -x – 3y = 9**Given two functions, determine any similarities and**differences of their graphs. (Hint: Use cover-up to graph) • 3x – 4y = 12 2) -x – 3y = 9**Find the slope of the line through the 2 points, then use**the slope to classify the line as, horizontal, vertical, or oblique 1) (-3, 7) (-3, 4) 2) (-4, 3), (-2, 1) 3) (5, 2), (-6, 2)**Find the slope of the line through the 2 points, then use**the slope to classify the line as, horizontal, vertical, or oblique 1) (-3, 7) (-3, 4) Slope: undefined Vertical Line 2) (-4, 3), (-2, 1) Slope: -1 Oblique 3) (5, 2), (-6, 2) Slope: 0 Horizontal Line**Word Problems!**• In 2000, the cost of in-state tuition at Mizzou was $9,000 a year. In 2013 the cost of in-state tuition is $21,000. Find the rate of change.**Word Problems!**• In 2000, the cost of in-state tuition at Mizzou was $9,000 a year. In 2013 the cost of in-state tuition is $21,000. Find the rate of change. Increasing $923.07 per year**Complete the problems:**The following table represents a linear function. Fill it in and identify the x and y intercepts Graph the line if the x intercept is 5, and the y-intercept is -3**Complete the problems:**The following table represents a linear function. Fill it in and identify the x and y intercepts Graph the line if the x intercept is 5, and the y-intercept is -3 X-int: (1,0) Y-int: (0, 4)**Graph the following equations by filling in the table and**using the points 1) y = -x + 4 3) y = 3x + 8**Graph the following equations by filling in the table and**using the points 1) y = -x + 4 3) y = 3x + 8**Mrs. Huseman and Ms. Howard are going to put up Christmas**lights. They lean a ladder against the house and the top of the ladder touches the house at 12 feet above the ground. The base of the ladder is 6 feet from the side of the house. • Draw a picture of the situation and label everything! • What is the slope of the ladder as a positive number?**Mrs. Huseman and Ms. Howard are going to put up Christmas**lights. They lean a ladder against the house and the top of the ladder touches the house at 12 feet above the ground. The base of the ladder is 6 feet from the side of the house. • Draw a picture of the situation and label everything! • What is the slope of the ladder as a positive number? Slope = 2