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

4. An organizational psychologist measures levels of job satisfaction in a sample of 30 participants. To measure the variance of job satisfaction, it is calcula
Directions: Insert colons or parentheses into each of the sentences below. Review the information if necessary. An example is shown below
Plz help me out this the last one I have to do and idk how
see attached ANSWER QUICK PLS WHAT DO I CHOOSE
HELP! 7th grade math! GIVE CORRECT ANSWER AND YOU WILL GET BRAINLIEST!!
Which changes would result in a decrease in the gravitational force between two objects? Check all that apply increasing the distance between the objects decrea
Critically analyze the difference and the point of convergence between floor inspection and functional inspection
A bar graph entitled 2012 Housing Prices has Sales Price (Thousands of dollars) on the x-axis, and 0 to 15 in increments of 5 on the y-axis.A bar graph entitled
HELP ME PLEASE THIS IS REALLY IMPORTANT
Any help would be greatly appreciated