You are flying a kite. You pull in the kite at a rate of 1.75 feet per second. After 8 seconds, the kite is 30 feet from your hands. Write an equation that represents the distance y (in feet) that the kite is from the end of your hands after x seconds. Then graph the equation.

Respuesta :

Answer:

Part 1) the linear equation is [tex]y=1.75x+16[/tex]

Part 2) The graph in the attached figure

Step-by-step explanation:

Part 1) Write an equation

Let

x ----> the time in seconds    

y ----> the distance in feet that the kite is from the end of your hands

we know that

The linear equation in slope intercept form is equal to

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

where

m is the slope or unit rate of the linear equation

b is the y-intercept or initial value

In this problem

we have

[tex]m=1.75\ \frac{ft}{sec}[/tex]

[tex]point\ (8,30)[/tex]

substitute

[tex]30=1.75(8)+b[/tex]

solve for b

[tex]30=14+b[/tex]

[tex]b=30-14[/tex]

[tex]b=16\ ft[/tex] ----> the initial distance

therefore

The linear equation is equal to

[tex]y=1.75x+16[/tex]

Part 2) Graph the equation

we have

[tex]y=1.75x+16[/tex]

To graph the line we need two points

we have

(0,16) and (8,30)

Plot the points and connect them to graph the line

Remember that the values of x and y cannot be a negative number

The graph in the attached figure

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