Question

The function below shows the cost of a hamburger with different numbers of toppings (t). f(t) = 1.90 + 1.40t What is the y-intercept, and what does it mean?

Answer 1

`1.9`

the cost of the hamburger will be
`\$1.9` if no toppings are added.

Explanation:

The function is

`f(t)=1.9+1.4t`

Let cost of toppings be
`y`

`y=1.9+1.4t`

The y-intercept of a function is the value of the function when
`x=0`. Here number of toppings
`t=0`.

So, the intercept of the function is
`1.9`

This means the cost of the hamburger will be
`\$1.9` if no toppings are added.