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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.