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

The three traits an entrepreneur must possess to be successful are _____. a. motivation, humility, and decision making b. conflict management, motivation, and
How do add pictures on here
The distance from Baltimore to New York is about 171 miles this is about 189 miles less then the distance from Baltimore to Boston how far is Baltimore from Bo
Discuss four ways a scientist can reduce bias scientific investigation
How many times does 8 go into 64?
Why is capitalism called a free - market economy?
3(2j-k) = 108, for j
You have trained all year for a marathon. In your first attempt to run a marathon, you decide that you want to complete this 26-mile race in 4.5 hours. What wou
Which was the most major cause of foreign interest in Persia? a. Persia had weak export laws. b. Persia reversed its strong immigration policy. c. Persia mai
Then, name an event that you think illustrates the changing perceptions of authority within the United States in the 1960s and 1970s and explain your reasoning.