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avatar+46 

Lena rediscovered a savings account that she had opened a long time ago. As shown in the graph, A(t) gives the amount of money in the account as a function of the number of years since she opened the account.

 Jun 11, 2021
 #1
avatar+795 
+1

Slope: $\frac{36-30}{23-0} = \frac{6}{23}$

$y = \frac{6}{23} x + b$

$30 = b$

$y = \frac{6}{23} x + 30$

$y \in \mathbb{R}$

For the last box, I don't know the options, so how about you show us the options for the last one.

 Jun 11, 2021
 #2
avatar+35059 
+1

The domain is the scope of the 'x' values    [0,23]      which represents years.

 

   So the domain is   23 from 0 inclusive         represents years

 Jun 12, 2021

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