Question

To draw the graph of the equation x-y=1
​

Answer 1

Answer:

Determine the x- and y-intercepts, plot them, and draw a straight line through the point.

Explanation:

Graph:

x

−

y

=

1

X-intercept: value of

x

when

y

=

0

Substitute

0

for

y

and solve for

x

.

x-0=1#

x

=

1

The x-intercept is

(

1

,

0

)

. Plot this point.

Y-intercept: value of

y

when

x

=

0

Substitute

0

for

x

and solve for

y

.

0

−

y

=

1

−

y

=

1

Multiply both sides by

−

1

. This will reverse the signs.

−

1

(

−

y

)

=

1

×

−

1

y

=

−

1

The y-intercept is

(

0

,

−

1

)

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Answer 2

Answer:

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