Equations With Two Variables

If (2 ,0) is a solution of the linear equation 2x + 3y = k, then the value of k is_____

• 4

• 5

• 6

• 2

The graph of the linear equation 2x + 3y = 6 cuts the y - axis at the point _____

• (2 ,0)

• (0 ,3)

• (3 ,0)

• (0, 2)

Tags

CCSS.HSF-IF.C.7A

Which equation represents the following graph?

• y = 3x + 2

• y = -2x + 3

• y = 2x + 3

• y = -3x + 2

The graph of linear equation x + y = 2, cuts the y-axis at:

• a. (2,0)

• b. (0,2)

• c. (0,1)

• d. (1,1)

Tags

CCSS.HSF-IF.C.7A

Any point on the line x = y is of the form:

• a. (k, -k)

• b. (0, k)

• c. (k, 0)

• d. (k, k)

The positive solutions of the equation ax + by + c = 0 always lie in the:

• a) 1st quadrant

• b) 2nd quadrant

• c) 3rd quadrant

• d) 4th quadrant

Tags

CCSS.HSF-IF.C.7A

Equation of the line parallel to x-axis and 6 units above the origin is:

• a) x = 6

• b) x = –6

• c)y = 6

• d)y = –6

The graph of which of the following equations passes through the origin?

• (i) y = 2x + c

• (ii) y = 2x – c

• (iii) y = 2x

Is (3, 2) a solution of x + y = 6?

• yes

• no

• may be, cannot judge.

• none of the above

The geometrical representation of a linear equation

• Straight line

• Curve

• Parabola

• Either (b) or (c)