a) Use the lengths as the x values and the weight as the y values. The points will be at (60,105) (62,114) (64,124) (66,131) etc..
b) After you plot the points make a prediction of what you think the y value will be when the x value is 75. Based on the increasing data, I'd say that when the shark is 75 inches long the weight will be about 175. Each x value increases by 2 and each y value increases by roughly 10. This means that as each x value increases by 1, the y value will increase by 5. Add 3 more to x to get to 75 and add 5*3 or 15 to the y value to get the desired y value. That's why I guess it'll be around 170-175-ish.
c) As each x value increases by 2, each y value increases by approximately 10.
Hope this helps!!
