Tag: equations of lines parallel to the x-axis and y-axis

Questions Related to equations of lines parallel to the x-axis and y-axis

Multiple choice maths lines graphs of linear equations equations of lines parallel to the x-axis and y-axis graph of linear equations in two variables

In the equation $2x - 3y = 12$. The value of $x$ and $y$ that satisfy the equation are-

  1. $(5, 3)$
  2. $(2, 3)$
  3. $(6, 0)$
  4. $(3,12)$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Put $\displaystyle x=6$ and $\displaystyle y=0$ in given equation.
$\displaystyle 2x-3y=2\times 6-3\times 0$
=12-0
=12
Hence, the value of x and y that satisfy the equation are (6,0).

Multiple choice maths lines graphs of linear equations equations of lines parallel to the x-axis and y-axis graph of linear equations in two variables

The graph of $x =8 $ represents:

  1. line parallel to $y$-axis and at a distance of $8$ units.
  2. line parallel to $x$-axis and at a distance of $8$ units.
  3. line parallel to $y$-axis and at a distance of $0$ units.
  4. None of these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The line $x=8$ or a point $(8,0)$ lies on the $x$-axis whwich is parallel to $y$-axis and at a distance of $8$ units.

Multiple choice maths lines graphs of linear equations equations of lines parallel to the x-axis and y-axis graph of linear equations in two variables

The graph of $|x| + |y|$ consists of

  1. one straight line

  2. a pair of straight lines

  3. the sides of a square

  4. a circle

  5. a point

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Given $|x|+|y|$

  1. For $x>0$ and $y>0$ , we have $x+y$
  2. For $x>0$ and $y<0$ , we have $x-y$
  3. For $x<0$ and $y>0$ , we have $-x+y$
  4. For $x<0$ and $y<0$ , we have $-x-y$
  5. observe that the four equations will form a square

Multiple choice maths lines equations of lines parallel to the x-axis and y-axis graphs of linear equations graph of linear equations in two variables

A straight line parallel to the $x$-axis has equation 

  1. $x = a$
  2. $y = a$
  3. $y = x$
  4. $y = -x$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let the equation of line be $y=mx+c  ...(1)$
Since, the line is parallel to $x$-axis, so slope of line, $m =0$
So, equation $(1)$ becomes $y=c$
Let the line is at a distance of $a$ from $x$-axis.
$a=c$
$\Rightarrow y=a$