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Easy Math · Algebra · Systems of two linear equations in two variables · MCQ

A system of two linear equations is graphed in the xy-plane below.

The figure presents the graph of 2 lines in the x y plane. The numbers negative 4 through 16, in increments of 2, are indicated on the x axis. The numbers negative 4 through 20, in increments of 2, are indicated on the y axis. One line begins above the x axis and to the left of the y axis. It moves upward and to the right, crossing the y axis at 6, and passing through the point with coordinates 3 comma 9 and the point with coordinates 12 comma 18. The other line begins below the x axis and to the left of the y axis. It moves upward and to the right, crossing the y axis at 3, and passing through the point with coordinates 3 comma 9 and the point with coordinates 6 comma 15. The two lines intersect at the point with coordinates 3 comma 9.

Which of the following points is the solution to the system of equations?

A
$the point with coordinates 3 comma 9$
B
$the point with coordinates 6 comma 15$
C
$the point with coordinates 8 comma 10$
D
$the point with coordinates 12 comma 18$

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id cb_question_bank:4f64bfc3-b4c1-416b-bc50-eb86b5faeb0e · question e1259a5a · IBN 026145-DC · JSON