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Grandpa Ernie is shrinking over the past four years his height decreased by a total of 2.4 cm it decrease by the same amount each year what was the change in grandpa Ernie’s height each year

Respuesta :

cinderofsoulsss

Answer:

-0.6cm/year

Step-by-step explanation:

His height decreased by 2.4 cm in 4 years.

[tex]\frac{-2.4}{4}[/tex]

-0.6cm/year

raphealnwobi

The change in grandpa Ernie’s height each year is -0.6 cm per year.

The equation of a straight line is given by:

y = mx + b;

where y,x are variables, m is the slope of the line and b is the y intercept.

Let y represent the height of Grandpa Ernie after x years. Let the decrease per year be k. Hence:

y = kx

After four years his height decreased by a total of 2.4 cm, hence:

-2.4 = k(4)

k = -0.6 cm per year

Hence, the change in grandpa Ernie’s height each year is -0.6 cm per year.

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