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A line passes through the points (3, a), (2, 4) and (b, 4). What are a and b.

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needyourhelp | Student, Kindergarten | eNoter

Posted September 21, 2013 at 2:32 PM via web

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A line passes through the points (3, a), (2, 4) and (b, 4). What are a and b.

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justaguide | College Teacher | (Level 2) Distinguished Educator

Posted September 21, 2013 at 2:43 PM (Answer #1)

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The line passes through (3, a), (2, 4) and (b, 4). The line passes through (2, 4) and (b, 4). This is the case when the line is horizontal and the equation of the line is y = 4

As it passes through (3, a), a = 4

y = 4 is true for any value of b where b is the x-coordinate of a point (b, 4)

The required value of a = 4 and b can take on any value.

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