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- The equation of a partial variation can be given by $y=mx+b$, where $y$ and $x$ are the dependent and independent variables,
respectively. Which of the following is true?

- The graph of a partial variation $y=mx+b\quad\cdots$

- A taxi driver charges $\$5$ plus $\$0.05$ per km. This is an example of a $\cdots$

- An electrician charges $\$45$ for a home visit. If repairs are needed, he charges $\$30$ per hour. Let $A$ be the amount
the electrician makes and let $t$ be the time. An equation relating $A$ and $t$ is $\cdots$?

- A telephone company charges a base fee of $\$20$ each month. There is an additional fee of $\$0.01$ per international text.
In a certain month, Mr. Text sent $200$ international text messages. How much bill will he have to pay?

- An affordable car rental company charges $\$30$ to rent a car, plus an additional $\$2$ for every kilometer the car travels. If
the cost is represented by $C$ and the distance by $d$, find an equation connecting the two variables.

- A tutoring company charges $\$50$ registration fee, plus an additional $\$25$ per hour of tutoring. A student has a budget of
$\$500$. How many hours of tutoring can the student have?

- An equation for a partial variation is given by $y=3x-5$. Which of the following points does not satisfy this equation?

- An equation for a partial variation is given by $y=-2x+5$. Which of the following points satisfies this equation?

- Which of the following equations does not represent a partial variation?