Linear Functions Test Review Insights

The video tutorial reviews the unit on linear functions, focusing on understanding slopes, graph analysis, and determining line equations. It provides strategies for test preparation, including taking notes and using calculators. The tutorial covers proportional and additive relationships, emphasizing the importance of understanding the slope as a rate of change or constant of proportionality. Students are guided through graphing exercises and table analyses to reinforce these concepts.

What should you do to prepare for the test tomorrow?

• Just relax and do nothing.

• Skip the review and go straight to the test.

• Write down the review and take notes.

• Only use your calculator.

What is the slope of a line that passes through the points (2, 2.8) and (6, 8.4)?

• 1.2

• 1.4

• 1.8

• 1.6

How do you find the slope between two points?

• Divide the difference in y-values by the difference in x-values.

• Add the x-values and y-values.

• Multiply the x-values and y-values.

• Subtract the x-values from the y-values.

What is the equation of a line with a slope of 1/2 that passes through the origin?

• y = 2x

• y = 1/2x

• y = x + 2

• y = x - 2

Which graph shows a line with a slope of 2 passing through the point (1, 2)?

• Graph C

• Graph D

• Graph A

• Graph B

What is the slope of the line represented by the equation y = 1/3x?

• 1/3

• 1/2

• 2/3

• 3/4

Which points lie on the line y = 1/4x?

• (-2, -1/2), (4, 1), (1, 1/4)

• (-8, -2), (4, 4), (0, 0)

• (-8, -2), (4, 1), (0, 0)

• (-2, -1/2), (4, 4), (1, 1/4)

What type of relationship is represented by the equation y = x + 2?

• Exponential

• Multiplicative

• Additive

• Proportional

Which table follows the rule y = x - 12?

• Table 1

• Table 2

• Table 4

• Table 3

What is the y-intercept of the line y = x - 6?

• 1

• 0

• 6

• -6