Question

Shayla is tracking the weight of the smallest puppy in a litter. Use the table to write a linear function that models the puppy's growth.

Week Weight in ounces
0 3
1 6
2 9
3 12

y = 3x + 3
y equals one third times x plus 3
y = 3x + 12
y equals one third times x plus 12

Answer 1

A (y=3x+3)

Explanation:

Answer 2

y=3x+3

Explanation:

Lets say that week weight in ounces is 'y' variable, and the week number is 'x' variable

Lets also remember the equation for a line, y=mx+b, where m is the slope and b is an offset (the value the function has when x=0), the slope is obtained from equation (y2-y1) / (x2-x1)

The selected points will be (1,6) as Point 2 and (0,3) as Point 1. We have m=3

And from the point 1 we can also obtain the value for b.

So y=3x+3