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PLEASE HELP!!
The equation y = 6.3x + 67.4 is the equation of a linear model in a scatter plot comparing the ages of boys between 2 and 10 years old open parentheses x close parentheses and their average heights in centimeters open parentheses y close parentheses.



What is the average height of a 5-year-old boy?
Question 24 options:


98.9 cm


78.7 cm


67.4 cm


62.4 cm

Respuesta :

calculista

Answer:

The average height of a 5-year-old boy is [tex]98.9\ cm[/tex]

Step-by-step explanation:

Let

x------> the ages of boys between 2 and 10 years old

y-----> the average heights in centimeters

we have

[tex]y=6.3x+67.4[/tex]

so

For [tex]x=5[/tex] year-old-boy

substitute in the equation the value of x to find the value of y

[tex]y=6.3(5)+67.4=98.9\ cm[/tex]

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