1. 1.A 2.B 3.C 4.D A.d = 400t; 5 h B.d = 490t; 4 h C.d = 40t; 50 h D.d = 4t; 500 h 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. 11/12 Honors Algebra Warm-up

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

3. Lesson 3 Ex1 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

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

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

6. Lesson 3 CYP2 1.A 2.B 3.C 4.D B. Write an equation in slope intercept form of the line shown in the graph. A. B. C. D.

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

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

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

10. 1.A 2.B 3.C 4.D Lesson 3 CYP3 B. Graph 3x + 2y = 6. A.B. C.D.