Question

What equation describes amount of money for taco trunk 4.?

Answer 1

`f(x)=1\cdot x+11`

Explanation:

These situations are represented by linear equations since they are represented by an initial value and a constant rate of change. Linear functions are given as:

`\begin{gathered} f(x)=mx+b \\ \text{where,} \\ b\text{ is the initial value} \\ m\text{ is the rate of change} \end{gathered}`

For truck 4, the initial value is 11 and it sells each taco for $1.

Therefore, the equation that describes the amount of money for truck 4:

`\begin{gathered} f(x)=1\cdot x+11 \\ \text{where, } \\ x\text{ is the amount of tacos sold} \end{gathered}`