Linear Equations Check In

What is the slope of this graph?

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What is the y-intercept of the graph?

Which equation is the slope-intercept form of the graph?

What is the slope-intercept equation of the graph?

Using a slope of 3 and a y-intercept of (0, -2), what is the slope-intercept form?

Which equation matches the situation?  A plumber charges $50 for a house call plus $12 per hour for labor. (x = number of hours worked and y = total cost)

• y = 50 x + 12

• y =12 x + 50

• y = 62 x

• x = 50 + 12y

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Ryan's Auto Wash earns revenues of $9 per customer. Write an equation that shows the relationship between the number of customers x and the revenue y.

An amusement park has an entrance fee, and then there is a cost to ride each ride. The total cost (y) can be modeled by y=5.5x+20 where x is the number of rides you ride. What does the y intercept represent?

• Number of rides

• The entrance fee

• The cost for food

• The cost per ride

Write the equation that represents this word problem:

Marcus makes tacos at a restaurant. He has already made 8 tacos, and can make 3 tacos per minute.

• y= 8x + 3x

• y= 3x + 8

• y= 8x + 3

• y= 3 + 8