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

BrainPOP:Slope and Intercept

What point will a nonproportional line always

pass through?

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

A. A

B. B

C. C

D. D

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.

Write an Equation From a Graph

A. Write an equation in slope-intercept form of the line shown in the graph.

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.

Graph Equations

A. Graph y = 0.5x – 7.

Step 1 Plot the y-intercept.

Step 3 Draw a line through the points.

Step 2 Write the slope as a ratio and plot another 2 points.

Step 3 Write slope as ratio and plot 2 more points.

Step 4 Draw a line connecting the points.

B. Graph 5x + 4y = 8.Step 1 Solve for y to write the equation in slope-intercept form.

Step 2 Plot the y-intercept.

1. A

2. B

3. C

4. D

A. Graph y = 2x – 4.

A. B.

C. D.

1. A

2. B

3. C

4. D

B. Graph 3x + 2y = 6.

A. B.

C. D.