Item 25
25) Solve the problem.
An investment is worth $3733 in 1994. By 1997 it has grown to $5425. Let y be the value of
the investment in the vear x, where x 0 represents 1991. Write a linear equation that
models the value of the investment in the vear x.
y = -564x + 7117
1 x + 3733
564

Item 25 25 Solve the problem An investment is worth 3733 in 1994 By 1997 it has grown to 5425 Let y be the value of the investment in the vear x where x 0 repre class=

Respuesta :

Answer:

[tex] m =\frac{y_2 -y_1}{x_2-x_1}= \frac{5425-3733}{3-0}= 564[/tex]

Now we can use the value for 1994 and we can find the intercept like this:

[tex] 3733 = 564*0 +b[/tex]

And solving for b we got:

[tex] b = 3733 -0= 3733[/tex]

So then oir model would be given by:

[tex]y= 564x +3733[/tex]

Option C

Step-by-step explanation:

For this case we want to create a linear function for the the value of  the investment in the vear x, where x =0 represents 1994.

We know that for 1994 (x= 0) the value is y = $3733 and for 1997 (x=3) the value of y = $5425

We want to find a model given by:

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

Where m is the slope and b the intercept. We can find the slope with this formula:

[tex] m =\frac{y_2 -y_1}{x_2-x_1}= \frac{5425-3733}{3-0}= 564[/tex]

Now we can use the value for 1994 and we can find the intercept like this:

[tex] 3733 = 564*0 +b[/tex]

And solving for b we got:

[tex] b = 3733 -0= 3733[/tex]

So then oir model would be given by:

[tex]y= 564x +3733[/tex]

Option C