Thursday

July 24, 2014

July 24, 2014

Posted by **karen** on Friday, August 10, 2012 at 5:19pm.

The following equation can be used to predict the average height of boys anywhere between birth and 15

years old: y = 2.79x +25.64 where x is the age (in years) and y is the height (in inches).

a. What does the slope represent in this problem? Interpret it in context.

b. What does the y-intercept represent in this problem? Interpret it in context.

- algebra -
**Steve**, Friday, August 10, 2012 at 5:32pmslope is the boys' growth rate, inches/year

the y-intercept is where x=0, that is, the height at birth. Wow! 25.64 inches at birth! Probably just a fudge factor so that height in subsequent years is a decent approximation.

- algebra -
**karen**, Friday, August 10, 2012 at 9:12pmthank you so much!

**Related Questions**

statistics (math) - The following equation can be used to predict the average ...

Math30-1 - Your search for a researcher has determined that an equation that ...

Algebra - The life expectancies for men and women in the United States can be ...

Trigonometry help please! - Assume that height is a function of age and that H=f...

algebra - A person is 3 times as old as aonther person but in 15 years she will ...

Maths - Mrs Lim is m years old. She gave birth to her son when she was 20 years ...

Math - The average life expectancy for American men born in 1900 was 55 years. ...

Math - 2x represents that Clyde is twice (2 times) as old as Bonnie. 6 years ...

algebra - What is the equation for the line of best fit that matches the data ...

math - A. Lisa is 15 years old and her father is 40. How many years ago was the ...