jessezarate493 jessezarate493
  • 07-05-2019
  • Mathematics
contestada

(-9,-35) and (2,9) are two anchor points on the trend line, then find the equation of the line

Respuesta :

altavistard
altavistard altavistard
  • 07-05-2019

Answer:

the desired equation is y = 4x + 1

Step-by-step explanation:

As we move to the right from (-9, -35) to (2, 9), x increases by 11 and y increases by 44.  Thus, the slope of the line in question is

m = rise / run = 44/11 = 4.

Using the slope-intercept form of the equation of a straight line, we substitute 4 for m, 2 for x and 9 for y, obtaining:

y = mx + b →  9 = 4(2) + b.  Thus, b = 1, and the desired equation is

y = 4x + 1

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