The set {(1, 2), (2, -3), (3, 4), (4, -5)} represents y as a function of x Question 2: The best statement describes the relation is "The relation represents y as a function of x, because each value of x is associated with a single value of y" ⇒ 3rd answer Question 4: There are missing options so we can not find the correct answer Question 5: The sets {(1 , 1), (2 , 2), (2 , 3)} and {(1, 2), (1, 3), (1, 1)} do not represent y as a function of x ⇒ 1st and 4th answers Step-by-step explanation: The relation is a function if each value of x has ONLY one value of y Ex: The set {(3 , 5) , (-2 , 1) , (4 , 3)} represents y as a function of x because x = 3 has only y = 5, x = -2 has only y = 1, x = 4 has only y = 3 The set {(4 , 5) , (-2 , 1) , (4 , 3)} does not represent y as a function of x because x = 4 has two values of y 5 and 3
Given the data above, we can calculate the rate of the driving of the car. rate is equal to miles driven per gallon which is computed to be 28 miles per gallon. In this case, if we are asked to determine the number of gallons to drive 420 miles, then 420 miles / 28 miles per gallon equal to 15 gallons.
