Exploring Algebra I Keystone Concepts #66 - 72

What is the scale conversion if 1.5 inches on the map equals 54 miles?

• 1 inch = 72 miles

• 1 inch = 36 miles

• 1 inch = 54 miles

• 1 inch = 18 miles

What is the correct scale if 1 inch on the map represents 36 miles?

• 1.5 inches = 54 miles

• 1 inch = 54 miles

• 1 inch = 18 miles

• 1.5 inches = 36 miles

What is the slope of a line that passes through the points (3,7) and (7,4)?

• 4/3

• -4/3

• 3/4

• -3/4

If the equation of a line is y = mx + b, what is the y-intercept when m = -3/4 and the line passes through the point (3,7)?

• 9.25

• 7.25

• 10.25

• 8.25

What are the x and y intercepts of the equation x + 2y = 8?

• x = 8, y = 4

• x = 4, y = 8

• x = 0, y = 4

• x = 8, y = 0

What is the slope of a line where you rise 2 units and run 3 units?

• 1/2

• 3/2

• 2/3

• 3/4

How does the graph change between 1 hour and 4 hours in terms of distance?

• Increases by 150 miles

• Increases by 180 miles

• Increases by 160 miles

• Increases by 170 miles

What is the weekly rate of change in Katie's budget according to the slope of the line?

• $50 decrease per week

• $50 increase per week

• $25 increase per week

• $25 decrease per week

Is the function y = mx + b linear, and what is the y-intercept if it is?

• Yes, y-intercept is 3

• No, y-intercept is 3

• No, y-intercept is -3

• Yes, y-intercept is -3

What is the slope of the budget line if the account decreases by $400 over 8 weeks?

• -50

• 25

• 50

• -25