GMAT Quantitative Reasoning Practice Test 2

Question : 74 of 100

Marks: +1, -0

(R, R^2+1)

is the

(x, y)

coordinate of a point located on the line:

Y=2 X+4

, what can be the value of the parameter

R

Solution:

If the point is on the line then you can plug the coordinate into the equation.

\;Y=2 X+4

\;R^2+1=2 R+4

\;R=3

R=-1

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