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Question 664563: I have no clue how to solve this
Graph the line that satisfies each set of conditions
passes through(0,1), perpendicular to a line whose slope is 1/3
Found 2 solutions by solver91311, MathLover1: Answer by solver91311(24713) (Show Source): Answer by MathLover1(20850) (Show Source):
You can put this solution on YOUR website! passes through( , ),
perpendicular to a line whose slope is
if lines perpendicular, their slopes are negative reciprocals; so, your line will flip the which is and then its , and you would get ; so, you have a slope
now we can find the equation of the line that passes through( , ) and has a slope
Solved by pluggable solver: FIND a line by slope and one point |
What we know about the line whose equation we are trying to find out:
- it goes through point (0, 1)
- it has a slope of -3
First, let's draw a diagram of the coordinate system with point (0, 1) plotted with a little blue dot:

Write this down: the formula for the equation, given point and intercept a, is
(see a paragraph below explaining why this formula is correct)
Given that a=-3, and , we have the equation of the line:

Explanation: Why did we use formula ? Explanation goes here. We are trying to find equation y=ax+b. The value of slope (a) is already given to us. We need to find b. If a point ( , ) lies on the line, it means that it satisfies the equation of the line. So, our equation holds for ( , ): Here, we know a, , and , and do not know b. It is easy to find out: . So, then, the equation of the line is: .
Here's the graph:

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