An algebra problem by Andriane Casuga

Algebra Level 1

Line AB has the equation 3x - 4y + 5 = 0. Point (p, p+2) lies on line AB. What is the value of p?

2 7- 3 -3 4 2-

Andriane Casuga by Andriane Casuga , 30, United Arab Em…

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2 solutions

Uahbid Dey
Aug 26, 2015

3p - 4(p+2) + 5 = 0 .... => p = - 3

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Andriane Casuga
Aug 23, 2015

The key to this is remembering that coordinates come in the form (x,y). That means x=p and y=p+2, so y=x+2. Plug that into the equation given and it works out at x=-3.

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