1.

At which point does the straight line y = x + 7 intersect X – axis ? A) (7, 0) B) (0, 7) C) (0, -7) D) (-7, 0)

Answer»

Correct option is (D) (-7, 0)

On X-axis, y-coordinate of any point is zero.

\(\therefore\) Put y = 0 in equation y = x+7 to get the intersecting point with X-axis.

\(x+7=0\)

\(\Rightarrow x=-7\)

Hence, straight line y = x+7 intersect X-axis at point (-7, 0).

Correct option is D) (-7, 0)



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