A trend line passes through the points (-4, 9) and (1, -1). What is the equation of the trend line? (y=mx+b, no spaces)

9514 1404 393

  y = -2x +1

Step-by-step explanation:

It is often convenient to start with a 2-point form of the equation for a line:

  y = (y2 -y1)/(x2 -x1)(x -x1) +y1

  y = (-1-9)/(1-(-4))(x -(-4)) +9 . . . . fill in the given points

  y = -10/5(x +4) +9 . . . simplify a bit

  y = -2x +1

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.

its adding 5.5 each time

step-by-step explanation: