Another important property of a line (or any curve on a coordinate plane) are its x- and y-intercepts: the points where the line intersects coordinate axes. Watch this lecture series and complete the interactive exercises.
Intercepts from an equation - Questions
Answers
1.
The -intercept is the point where the graph intersects the
-axis. Since the
-axis is also the line
, the
-value of this point will always be
.
The -intercept is the point where the graph intersects the
-axis. Since the
-axis is also the line
, the
-value of this point will always be
.
To find the -intercept, let's substitute
into the equation and solve for
:
To find the intercept, let's substitute
into the equation and solve for
:
In conclusion,
2.
The -intercept is the point where the graph intersects the
-axis. Since the
-axis is also the line
, the
-value of this point will always be
.
The -intercept is the point where the graph intersects the
-axis. Since the
-axis is also the line
, the
-value of this point will always be
.
To find the -intercept, let's substitute
into the equation and solve for
:
To find the intercept, let's substitute
into the equation and solve for
:
In conclusion,
3.
The -intercept is the point where the graph intersects the
-axis. Since the
-axis is also the line
, the
-value of this point will always be
.
The -intercept is the point where the graph intersects the
-axis. Since the
-axis is also the line
, the
-value of this point will always be
.
To find the intercept, let's substitute
into the equation and solve for
:
To find the -intercept, let's substitute
into the equation and solve for
:
So the -intercept is
. Generally, in linear equations of the form
(which is called slope-intercept form), the
-intercept is
.
In conclusion,
4.
The -intercept is the point where the graph intersects the
-axis. Since the
-axis is also the line
, the
-value of this point will always be
.
The -intercept is the point where the graph intersects the
-axis. Since the
-axis is also the line
, the
-value of this point will always be
.
To find the -intercept, let's substitute
into the equation and solve for
:
To find the intercept, let's substitute
into the equation and solve for
:
In conclusion,