allytrice7 allytrice7
  • 22-10-2019
  • Mathematics
contestada

i need help i don’t understand how to get the equations

i need help i dont understand how to get the equations class=

Respuesta :

Mirandawolfaj
Mirandawolfaj Mirandawolfaj
  • 22-10-2019

Answer:

y=-2x+2

Step-by-step explanation:

Since the 2 points given are (-3,8) and (2,-2) and the slope intercept form equation is y=mx+b with m as the slope, you can find slope by the formula:

[tex]\frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }[/tex]

Enter the 2 points in.

= -2-8/2-(-3)

= -10/5

= -2

The slope is -2.

Enter the slope (m) into the equation y=mx+b

y=-2x+b

Now, to find the y intercept (b) enter one of the points into the equation. (2,-2)

-2=-4+b

b=-2+4

b=2

So the equation is, y=-2x+2

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