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Linear Equation in One Variable

Use graph pap...

Question

Use graph paper for this question. Take $2 c m = 1 u n i t$ on both the axes.
Draw the graphs of $x + y + 3 = 0$ and $3 x - 2 y + 4 = 0$ . Plot only three points per line.

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Solution

$x + y + 3 = 0$
$x = - 3 - y$
x -2 -3 -4
y -1 0 1

$3 x - 2 y + 4 = 0$
$x = \frac{2 y - 4}{3}$
x -2 0 2
y -12 5

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Use graph paper for this question. Take 2 cm = 1 unit on both the axes.Draw the graph of

x + y + 3 = 0

3 x - 2 y + 4 = 0

. Write down the co-ordinates of the point of intersection of the lines.

Q. Use graph paper for this question. Take

2 c m = 2

x

1 c m = 1

y

Solve graphically the following equations:

3 x + 5 y = 12; 3 x - 5 y + 18 = 0

(Plot only three points per line)

Q. Draw the graphs of x + y + 3 = 0 and 3x - 2y + 4 = 0. Plot only three points per line.

Q. Use graph paper for this question. Take 2 cm=1 unit on both the axes,
(i) Draw the graphs of x+y+3=0 and 3x-2y+4=0. Plot only three points per line.
(ii) Write down the co-ordinates of the point of intersection of the lines.
(iii) Measure and record the distance of the point of intersection of the lines from the origin in cm.

Use graph paper for this question. Take

2 c m = 1

unit on both the axes. Draw the graph of

x + y + 3 = 0

3 x - 2 y + 4 = 0

. Measure and record the distance of the point of intersection of the lines from the origin in cm.

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