Category 2: 01 Describe Linear Functions

PG 48 #4: Linear function k has a zero of -2 and a y-intercept of 6. Which graph best represents k?

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PG 49 #5: Steven owes his parents $60. He does weekly chores to earn money to pay them back. The situation is graphed to the left. Which of the following best represents the rate of change for the situation?

• $15 per week

• $7.50 per week

• $4.50 per week

• $1 per week

PG 49 #7: What is the equation and slope of the line shown on the grid?

Equation: ​ (a)  

Slope: ​ ​ (b)  

• y=3
• 0
• x=3
• undefined
• y=3x

PG 50 #11: What is the zero of the linear function graphed below?

PG 50 #13: Jimmy is driving to his friend’s house that is 500 miles away from his house. The graph to the right represents the distance he has left to travel, 𝑦, and 𝑥 the number of hours driving. What is the rate of change?

• 1.20 miles/hours

• 62.5 miles/hours

• −1.20 miles/hours

• −62.5 miles/hours

PG 51 #16: The table shows the linear relationship between the balance of a student’s savings account and the number of weeks he has been saving. Move the correct answer to each box. Not all answers will be used.

The rate of change of 𝑦 with respect to 𝑥 is​ ​ (a)   ​ (b)   dollars per week.

• +
• 7
• -
• 32
• 0

PG 51 #17: The table represents some points on the graph of a linear function. What is the rate of change of 𝑦 with respect to 𝑥 for this function?