Answered

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B) The value of the function decreased by ____ per year after 1990

B The Value Of The Function Decreased By Per Year After 1990 class=

Sagot :

From the question

We are given the function

[tex]y=-0.5x+29[/tex]

Comparing the function with the equation

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

Then the slope of the function is

m = - 0.5

Using the function

[tex]y=-0.5x+29[/tex]

When x = 1

[tex]\begin{gathered} y=-0.5(1)+29 \\ y=28.5 \end{gathered}[/tex]

When x = 2

[tex]\begin{gathered} y=-0.5(2)+29 \\ y=28 \end{gathered}[/tex]

When x = 3

[tex]\begin{gathered} y=-0.5(3)+29 \\ y=27.5 \end{gathered}[/tex]

By comparing the values of y, we will notice a decrease of 0.5

Hence,

The value of the function decreased by 0.5 per year after 1990

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