Chapter 5 Quiz

What is the slope of this roof?

• 3

• 12

• 0.75

• 0.5

Find the slope

• $\frac{3}{2}$

• $\frac{2}{3}$

• $-\ \frac{3}{2}$

• $-\ \frac{2}{3}$

What is the y-intercept?

• 0

• 1

• 0.5

• 6

Use the first difference to decide if the relation is linear or non-linear

• linear

• non-linear

Use first difference to decide if the relation is linear or non-linear

• linear

• non-linear

The price charged to repair a computer is $60, plus $50/h. Which equation represents this situation?

• $c\ =\ 50h$

• $C\ =\ 60h$

• $C\ =\ 50\ +\ 60h$

• $C\ =\ 60\ +\ 50h$

The price charged to repair a computer is $60, plus $50/h. What is the total cost of a repair that takes 3.5 hours?

• $ 175

• $ 210

• $ 235

• $ 200

Which statement is false?

• The slope of a linear relation also represents a constant rate of change

• $\frac{rise}{run}$ is one way to calculate slope

• Non-linear relations have constant first differences.

• In the equation y mx  b, the slope is represented by m.

Find the slope (m) and y-intercept (b) of this relation.

• m = 2, b = 2

• m = 3, b = 2

• m = 1, b = 3

• m = 2, b = 3

What is the equation of a line with slope 4 and y-int -5

• y = 4x - 5

• y = -4x + 5

• y = 5x - 4

• y = -5x + 4