Question

The line of best fit for this data is y = 0.864x + 31.15. Using this equation, to predict Christine’s Best Javelin Throw for the year 2005. Remember, x = 0 for 1997.

Answer 1

`y = 0.864x + 31.15 Remember, x = 0 for 1997 0.864*8 + 31.15 = 38.062 Answer: 38.062`

Answer 2

So you would look for years since 1997. That would be 8 years. Plug in 8 for x, and you get y = 0.864(8) + 31.15 which is equal to 38.062
I got that because I got this: 0.864*8 = 6.912, and then I added it to 31.15


Hope this helps.