IDNLearn.com offers a collaborative platform for sharing and gaining knowledge. Get accurate and detailed answers to your questions from our dedicated community members who are always ready to help.

3. Avery records her rock-climbing progress and finds that her altitude, in kilometers above sea
level, can be represented by a linear model, A = 7+ 1.3t, where t is the number of hours since
Avery started climbing.
Based on this model, how many kilometers above sea level was Avery's altitude before she started
climbing?
km


Sagot :

Using the given linear function, it is found that Avery was 7 kilometers above sea level before she started climbing.

What is a linear function?

A linear function is modeled by:

[tex]y = mx + b[/tex]

In which:

  • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0, and can be interpreted as the initial value.

In this problem, her altitude in kilometers after t hours is modeled by:

A(t) = 7 + 1.3t.

The y-intercept is of b = 7, which means that Avery was 7 kilometers above sea level before she started climbing.

More can be learned about linear functions at https://brainly.com/question/24808124