Which situation involves a change modeled by a negative number but an end result modeled by a positive number? Jake started his hike at an elevation of 23 meters, traveled down the mountain and stopped at an elevation of –2 meters.
Marissa had $64 in her savings account. She then withdrew $20 to buy some sandals.
Lorelei owed her mother $15. She then got $10 in a birthday card from her grandmother.
Javier was scuba diving and swam up 6 meters from the ocean floor to sea level to reach his boat.

The answer is d

Step-by-step explanation: A is starting with a positive so is B so that leaves you C and D, c starts with negative number and still ends in a negative number because 15-10=5 leaving that as still the negative number so D would be the correct answer. Edge 2020

Part A: Yes

Part B: y = 3x + 4

Part C: Slope: the height increases at a rate of 3 cm per hour of sunlight

y-intercept: initial height, without any sunlight is 4 cm

Step-by-step explanation:

As x increases by 1 unit, y increases by 3. Therefore there is a correlation between the variables

Slope: (7-4)/(1-0) = 3/1 = 3

y-intercept is at x = 0, which is 4

Equation:

y = 3x + 4

Slope: the height increases at a rate of 3 cm per hour of sunlight

y-intercept: initial height, without any sunlight is 4 cm