scftness
scftness scftness
  • 15-11-2019
  • Mathematics
contestada

equation of this line????

equation of this line class=

Respuesta :

gcantiga44
gcantiga44 gcantiga44
  • 15-11-2019

Answer:

y = 1/2 x - 3

Step-by-step explanation:

Equation of line:

y = mx + b

We only need to find m(slope) and b(y-intercept)

We first find the slope of the line

Get any two points from the line.

(4,-1) (2,-2)

m = (y2 - y1) / (x2 - x1)

m = -2 - (-1) / 2 - 4

m = -1 / -2

m = 1/2

Now we find b (slope intercept)

This is easily found by looking where the line and the vertical line(y-axis) met.

The line passes to -3

So now that we have m and b,

y = 1/2x - 3

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