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11/12 Honors Algebra Warm-up. A baggage train took 3.5 hours to travel 140 miles. Write a direct variation equation to find the distance traveled for any number of hours and estimate how many hours it would take the train to travel 2000 miles. A B C D. A. d = 400 t ; 5 h

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  1. 11/12 Honors Algebra Warm-up A baggage train took 3.5 hours to travel 140 miles. Write a direct variation equation to find the distance traveled for any number of hours and estimate how many hours it would take the train to travel 2000 miles. • A • B • C • D A.d = 400t; 5 h B.d = 490t; 4 h C.d = 40t; 50 h D.d = 4t; 500 h

  2. What point will a nonproportional line always pass through? BrainPOP:Slope and Intercept Lesson 3 Key Concept 1

  3. A. Write an equation in slope-intercept form of the line with a slope of and a y-intercept of –6. Write an Equation Given Slope and y-Intercept Lesson 3 Ex1

  4. B. Write an equation in slope-intercept form of the line whose slope is 4 and whose y-intercept is 3. • A • B • C • D A.y = 3x + 4 B.y = 4x + 3 C.y = 4x D.y = 4 Lesson 3 CYP1

  5. Write an Equation From a Graph A. Write an equation in slope-intercept form of the line shown in the graph. Lesson 3 Ex2

  6. A. B. C. D. B. Write an equation in slope intercept form of the line shown in the graph. • A • B • C • D Lesson 3 CYP2

  7. Graph Equations A. Graph y = 0.5x – 7. Step 1Plot the y-intercept. Step 2Write the slope as a ratio and plot another 2 points. Step 3Draw a line through the points. Lesson 3 Ex3

  8. B. Graph 5x + 4y = 8. Step 1Solve for y to write the equation in slope-intercept form. Step 2Plot the y-intercept. Step 3Write slope as ratio and plot 2 more points. Step 4 Draw a line connecting the points. Lesson 3 Ex3

  9. A. B. C.D. A. Graph y = 2x – 4. • A • B • C • D Lesson 3 CYP3

  10. A. B. C.D. B. Graph 3x + 2y = 6. • A • B • C • D Lesson 3 CYP3

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