Conleyk14 Conleyk14
  • 02-10-2019
  • Mathematics
contestada

A line passes (2,-1) and (4,-5). Which is the equation of the line?

Respuesta :

dsouzaaww14
dsouzaaww14 dsouzaaww14
  • 02-10-2019

Answer:

y= -2x + 3

Step-by-step explanation:

y-y1 = m(x-x1)

-5-(-1) = m(4-2)

-5+1 = m (2)

-4 = 2m

-4/2 = m

m= -2

Hence, your slope is -2.

But we still need the y-intercept to find the equation.

Hence, use one of the points and the slope to determine the y-int.

y=mx+b

-1 = -2(2) + b

-1 = -4 +b

-1+4 = b

b = 3

Hence the equation of the line is:

y= -2x+3

Hope this helps!

Answer Link

Otras preguntas

How does an area benefit from volcanic activity?
What responsibilities did women take on during the war?
which chemical formula is a carbohydrate? a) C3H7O2N bC12H22O11 c)CO2 d)CH4
Solve the inequality 3(x + 2) > 0. x < -2 x > -2 x < 2 x > 2 Solve the inequality 13x - 4 < 12x - 1. x < 3 x > 3 x < 5 x > 5
What is the standard form for y + 5 = 0?
What were the noblemen tools of trade?
anybody else eat food?
The three pillars of aging well are diet/nutrition, exercise, and
What role does competition play in international trade??
The amount of money in the economy is called the _____.