Linear Equations with Two Variables

If we multiply or divide both sides of a linear equation with a non-zero number, then the solution of the linear equation____

• Changes

• Remains the same 

• Changes in case of multiplication only

• Changes in case of division only

Tags

CCSS.HSA.REI.A.1

The solution of equation x-2y = 4 is:

• (0,2)

• (2,0)

• (4,0)

• (1,1

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

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)

The graph of the linear equation in two variables y = mx is _____

• a line parallel to x - axis 

• a line parallel to y - axis 

• a line passes through the origin

• not a straight line

• Consistent : Unique solution
• Consistent: Many Solutions 
• Inconsistent: No solution 
• None of the above 

Tags

CCSS.8.EE.C.8A

Which equation represents the following graph?

• y = 3x + 2

• y = -2x + 3

• y = 2x + 3

• y = -3x + 2