Using the pictures below, answer the questions with an explanation.

1. List the range of the relation { (2,16), (3,9), (4,4) }. 2. State the domain and range in set notation (not interval notation) of the following: 3. Water is draining out of a tub at a constant rate. After4 min the water level is 62 cm and after 9 minutes the water level is 15 cm. a) Is this relationship a function or not? Explain. b) Is this relationship discrete or not? Explain. c) Plot the ordered pairs (time, water level) to represent this information. Be sure to include a main title, axes titles and units. d) Calculate the slope of the line segment algebraically. e) Explain what the slope of the graph represents. 4. Find the slope of the line passing through the points (no decimals, complete algebraically). a) (7, 5) and (7, 4) b) (1/3, 3/2) and (2, 7/2) 5. Algebraically determine the x and y intercepts for the linear equation 3x + 6y 7 = 0. 6. Determine the equation of the line passing through the following points in slopepoint form: (3, 4) and (11, 25) 7. Consider the lines 3x 5y 15 = 0 and ax + 2y 6 = 0. If the lines have the same slope determine the value of a. 8. Find the equation of a line in slopeintercept form that is perpendicular to 6x 2y + 5 = 0 and has the same xintercept as 2x y + 8 = 0 9. Solve the systems using any algebraic method. You must choose elimination for one and substitution for the other: 4x+2y=13 3x=1y a) b) 5x3y=19 2x+5y=22