Functions and Equations Assessment

The video tutorial covers Math 8 Unit 5 Lesson 4, focusing on functions through tables, equations, and graphs. It begins with an introduction to functions, followed by exercises matching equations to graphs. The lesson then explores the relationship between distance and time using a track example. Finally, it provides homework problems and solutions to reinforce the concepts learned.

What happens to the distance from the starting line as it reaches 200 meters?

• It becomes zero.

• It continues to increase.

• It remains constant.

• It starts to decrease.

Which graph would match the equation D = 60t?

• A curved graph

• A linear graph going upwards

• A linear graph going downwards

• A horizontal line

In the equation q = 50 - 0.4d, what does 'd' represent?

• Total value in dollars

• Number of quarters

• Number of dimes

• Distance in meters

What is the output when the input is 1 for the equation D = 60t?

• 0

• 120

• 30

• 60

How many seconds did it take Kieran to run 6 meters?

• 1 second

• 2 seconds

• 3 seconds

• 4 seconds

Is Kieran's time a function of the distance he has run?

• No, because distance is irrelevant.

• Yes, because time is always constant.

• Yes, because each distance has a unique time.

• No, because time can vary for the same distance.

What was the high temperature on day seven?

• 58°

• 60°

• 64°

• 62°

Is the high temperature a function of the day?

• Yes, because temperature is always increasing.

• No, because temperature is random.

• No, because multiple days can have the same temperature.

• Yes, because each day has a unique high temperature.

What is the equation for Lyn's earnings if she earns $9.60 per hour?

• x = y + 9.60

• y = x + 9.60

• x = 9.60y

• y = 9.60x

What is the solution for the system of equations 7x + 10 = -4x - 23?

• x = 3, y = -11

• x = -3, y = 11

• x = 3, y = 11

• x = -3, y = -11