Question

Graph the equation 3X-y=5

Answer 1

Answer:

x=(1.667,0)

y=(0,-5)

Answer 2

Step-by-step explanation:

Graph:

3

x

−

y

=

5

This is the standard form for a linear equation:

A

x

+

B

y

=

C

You only need two points to graph a straight line; the x- and y-intercepts.

X-intercept: value of

x

when

y

=

0

Substitute

0

for

y

and solve for

x

.

3

x

−

0

=

5

3

x

=

5

Divide both sides by

3

.

x

=

5

3

Point:

(

5

3

,

0

)

or

(

≈

1.667

,

0

)

Y-intercept: value of

y

when

x

=

0

Substitute

0

for

x

and solve for

y

.

3

(

0

)

−

y

=

5

−

y

=

5

Multiply both sides by

−

1

.

y

=

−

5

Point:

(

0

,

−

5

)

Plot the two points and draw a straight line through them.

graph{3x-y=5 [-10, 10, -7.2, 2.8]}