44.8k views
2 votes
What is the slope-intercept form for the

equation of the line passing through the
point (-1, 3) and having a slope of 3/5

User CaptSolo
by
8.6k points

2 Answers

5 votes
Step-by-step explanation:
The point-slope formula states:
(
y

y
1
)
=
m
(
x

x
1
)
Where
m
is the slope and
(
x
1
y
1
)
is a point the line passes through.
Substituting the slope and values from the point in the problem gives:
(
y


1
)
=
3
5
(
x


3
)
(
y
+
1
)
=
3
5
(
x
+
3
)
If you want the equation in the somewhat more familiar slope-intercept form we can solve this equation for
y
. The slope-intercept form of a linear equation is:
y
=
m
x
+
b
Where
m
is the slope and
b
is the y-intercept value.
y
+
1
=
(
3
5

x
)
+
(
3
5

3
)
y
+
1
=
3
5
x
+
9
5
y
+
1

1
=
3
5
x
+
9
5

1
y
+
0
=
3
5
x
+
9
5

5
5

y
=
3
5
x
+
4
5
User Maggon
by
7.4k points
0 votes
Y = 3/5x + b
3 = 3/5(-1) + b
3 = -3/5 + b, b = 3 3/5
Y = 3/5x + 3 3/5
User Kyle Dodge
by
7.5k points

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