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A day full of math games & activities. Find one near you.
A day full of math games & activities. Find one near you.
What is the equation of a line that passes through the point (2,1) and has an undefined slope?
Solution:
Given that, the equation of the line is with an undefined slope and goes through the point (2,1).
⇒ If the line has an undefined slope then the line is parallel to the y-axis (perpendicular to the x-axis).
We have the equation of the line passing through (h, k) and perpendicular to the x-axis as,
x = h
Here, given that, (h, k) = (2, 1)
∴ The required equation will be x = h ⇒ x = 2.
Note: If the line has slope zero and passes through the point (h, k) then its equation is y = k.
What is the equation of a line that passes through the point (2,1) and has an undefined slope?
Summary:
The equation of the line with an undefined slope and going through a point (2,4) is x = 2.
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