Log in
Precalculus
1
answer
0
watching
46
views

Discuss: Collinear Points. Suppose that you are given the coordinates of three points in the plane and you want to see whether they lie on the same line. How can you do this using slopes? Using the distance formula? Can you think any other method?

Watch
1
answer
0
watching
46
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Collen Von
Collen VonLv2
24 May 2020

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share

Related questions

Part A

Suppose that you want to construct a line with slope that passes through . You would begin by setting up the equation . If you plug in the coordinates for any point on that line, the two sides of the equation will be equal. Once you've done this, you can solve for . What is the value of ? 

Part B

Suppose that you want to find the equation for a line that passes through the two points and . What is the slope of this line?

Part C

Now, that you have the slope, proceed as you did in Part A. What is the value of  for this line? 

Part D

Now, find the equation for a line that passes through two points and . Express your answer in terms of .

Discuss: Same Line; Different Parametric Equations; Every line can be described by infinitely many different sets of parametric equations, since any point on the line and any vector parallel to the line can be used to construct the equation. But how can we tell whether two sets of parametric equations represent the same line? Consider the following two sets of parametric equations;

Show that the following two lines are not the same by finding a point on Line and then showing that is does not lie on Line .

Finding the Terminal Point for Suppose the terminal point determined by is the and the Points Q and R are as shown in the figure. Why are the distance and the same? Use this fact, together with the Distance formula, to show that the coordinates of satisfy the equation . Simplify this equation using the fact that . Solve the simplified equation to find

Weekly leaderboard

Home
Homework Help 3,900,000
Precalculus 10,000
Start filling in the gaps now
Log in