|
Question 1131292: What is the equation for the line that passes thru the points (2,-7) and (-2,4). Answer must be in print slope form
Found 3 solutions by josgarithmetic, ikleyn, MathTherapy: Answer by josgarithmetic(39617) (Show Source): Answer by ikleyn(52781) (Show Source):
You can put this solution on YOUR website! .
What is the equation for the line that passes thru the points (2,-7) and (-2,4). Answer must be in point slope form.
~~~~~~~~~~~~~~~~~~~~~
Since the post by @josgarithmetic is absurdist, I came to bring a correct solution.
First, calculate the slope.
The formula for the slope of a straight line passing through two given points
( , ) and ( , ) is
m = .
Substitute the given data = 2, = -7, = -2, = 4 into the basic formula
m = = = .
Next, find an equation of the line having the slope and passing through the given point (2,-7).
An equation of a straight line in a coordinate plane which has the slope m and passes through the given point P = (a,b) is
y - b = m*(x-a).
Substitute here m = , a = 2, b = -7, and you will get
y - (-7) = , or
y + 7 = .
It is the equation in the slope-point form, and it is your final ANSWER.
----------------
See the lesson
- Equation for a straight line in a coordinate plane passing through two given points
in this site.
Answer by MathTherapy(10552) (Show Source):
|
|
|
| |