Pre-Test 8.4C

What is the rate of change if the y-values increase by 4 for every 2 unit increase in x?

• 3

• 1

• 4

• 2

In a real-world scenario, if the number of customers at a store increases by 10 for every hour, what is the rate of change?

• 10

• 15

• 20

• 5

A line has a slope of -3. What does this indicate?

• The slope of -3 indicates a positive slope.

• The slope of -3 indicates a horizontal slope.

• The slope of -3 indicates a vertical slope.

• The slope of -3 indicates a negative slope.

In a real-world scenario, if the temperature decreases by 2 degrees Celsius for every hour, what is the slope?

• -2 degrees Celsius per hour

• 2 degrees Celsius per hour

• 0 degrees Celsius per hour

• -2 degrees Fahrenheit per hour

What is the y-intercept of the equation y = 2x + 5?

• 5

• -5

• 0

• 2

In a real-world scenario, if a car is traveling at a constant speed of 60 km/h, what is the y-intercept?

• 0 km

• -60 km

• 30 km

• 120 km

If the slope of a line is 0, what does this indicate?

• The line is curved.

• The line is diagonal.

• The line is vertical.

• The line is horizontal.

In a real-world scenario, if the cost of 5 apples is $10, what is the y-intercept?

• $10

• $20

• $15

• $5

What is the rate of change if the y-values decrease by 3 for every 1 unit increase in x?

• 3

• 1

• -3

• 0

In a real-world scenario, if the population of a city decreases by 1000 people every year, what is the rate of change?

• -100

• -500

• -1000

• 1000