1.
For a nonvertical line through the point at (
x
1
,
y
1
) with slope
m
, the point-slope form of a linear equation is ______.
A.
y
-
x
1
=
m
(
x
-
y
1
)
B.
y
-
y
1
=
m
- (
x
-
x
1
)
C.
x
-
x
1
=
m
(
y
-
y
1
)
D.
y
-
y
1
=
m
(
x
-
x
1
)
Hint
2.
Which information is enough to write a linear equation in point-slope form?
A.
the slope of the line
B.
the
x
-coordinates of two points on the line
C.
the
x
- and
y
-coordinates of two points on the line
D.
the
y
-coordinates of two points on the line
Hint
3.
Write the point–slope form of an equation for the line passing through
(2, –5) with slope
A.
B.
C.
D.
Hint
4.
A line passes through the origin of a coordinate system. The slope of the line is 0. What is the equation of this line?
A.
y
= –
x
B.
y
=
x
C.
x
= 0
D.
y
= 0
Hint
5.
The line in the graph represents Pete's increasing math grade. Find the equation of the line in point-slope form. Use (4, 64) for (
x
1
,
y
1
).
A.
y
– 4 = 2(
x
– 64)
B.
y
– 64 = 2(
x
– 4)
C.
y
+ 64 = 2(
x
v + 4)
D.
y
+ 4 = 2(
x
+ 64)
Hint