194k views
1 vote
Write the equation of the line that passes through the given points. (23/12 , 1/2) and (25/12 , 0)

Write the equation of the line that passes through the given points. (23/12 , 1/2) and-example-1

1 Answer

5 votes

Answer:

Explanation:

We'll look for an equation in the form of y=mx+b, where m is the slope and b is the y-intercept (the value of y when x = zero).

m, the slope, is the change in y (the Rise) over the change in x (the Run). We can use the two points to calculate the slope. From smallest x to largest:

(23/12 , 1/2) to (25/12 , 0)

Rise = (0 - 1/2) = -(1/2)

Run = ((25/12) - (23/12)) = (2/12)

Slope is Rise/Run

Rise/Run = (-(1/2))/(2/12)

(-(1/2))/(2/12) = (-(1/2))*(12/2)

= -(12/4) or -3

The equation takes the form y = -3x + b

We need to find a value of b that will move this line so that it goes through both points. Do that by entering one of the known points and solving for b:

y = -3x + b

(1/2) = -3*(23/12) + b for ((23/12), (1/2))

(1/2) = - (23/4) + b

b = (1/2) + (23/4)

b = (2/4) + (23/4)

b = (25/4)

The equation of the line that goes through the 2 given points is

y = -3x + (25/4)

See the attached graph.

Write the equation of the line that passes through the given points. (23/12 , 1/2) and-example-1
User Crusy
by
8.7k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories