Answer: Slope of Kaya 's graph must be 30.
Slope of Edgardo's graph must be 35.
Explanation:
We know that when the rate of change of a function (m) is constant with respect to the independent variable.
Then, the value for rate of change is equals to the slope of its graph.
Given : Kaya is saving money at a rate of $30 per month.
⇒ Slope of Kaya 's graph must be 30.
Edgardo is saving money at a rate of $35 per month.
⇒ Slope of Edgardo's graph must be 35.