All Intermediate Geometry Resources
Example Questions
Example Question #1512 : Intermediate Geometry
Find the x-intercept(s) for the circle
The circle never intersects the x-axis
The x-intercepts of any curve are the x-values where the curve is intersecting the x-axis. This happens when y = 0. To figure out these x-values, plug in 0 for y in the original equation and solve for x:
adding 0 or 0 square doesn't change the value
take the square root of both sides
this means there are two different potential values for x, and we will have to solve for both. First:
add 4 to both sides
Second: again, add 4 to both sides
Our two answers are and .
Example Question #5 : How To Find X Or Y Intercept
Give the coordinate pair(s) where intersects with the y-axis.
and
The graph does not intersect with the y-axis.
and
To find where the graph hits the y-axis, plug in 0 for x:
first evaluate 0 - 2
then square -2
add 4 to both sides
take the square root of both sides
now we have 2 potential solutions and need to solve for both
a)
b)
Example Question #7 : X And Y Intercept
Which is neither an x- or y-intercept for the parabola
The y-intercept(s) occur where the graph intersects with the y-axis. This is where x=0, so we can find these y-values by plugging in 0 for x in the equation:
The x-intercept(s) occur where the graph intersects with the x-axis. This is where y=0, so we can find these x-values by plugging in 0 for y in the equation:
add 16 to both sides
take the square root
Example Question #11 : X And Y Intercept
What is the x-intercept of the line
To determine the x-intercept, plug in for , since the x-axis is where .
subtract from both sides
multiply both sides by
divide both sides by
The x-intercept is
Example Question #231 : Coordinate Geometry
What is the x-intercept for the line ?
To find the x-intercept, plug in for , since the x-axis is where .
add to both sides
divide both sides by
Example Question #1521 : Intermediate Geometry
Find the y-intercept for the line
.
To find the y-intercept, plug in 0 for x, since the y-axis is where x = 0.
subtract 24 from both sides
divide by -3
The y-intercept is
Example Question #11 : How To Find X Or Y Intercept
Find the x-intercept for the line
.
To find the x-intercept, plug in 0 for y, since the x-axis is where y = 0
subtract 5 from both sides
multiply both sides by -3
The x-intercept is
Example Question #231 : Coordinate Geometry
What is the y intercept of the line :
Here all we have to remember is that when given a linear equation to find the y-intercept, or where the line crosses the y-axis, we just need to set x=0 and solve for y. This solution is shown below:
Example Question #16 : X And Y Intercept
A rocket is fired that follows the below parabolic path where h(t) represents the height (in feet) over time (in seconds). How much time did the rocket spend in the air?
8 seconds
256 seconds
16 seconds
0 seconds
16 seconds
To solve, you must find the zeros or x-intercepts for the function h(t).
To find x-intercepts, we must plug in 0 for h(t).
Factor to solve - divide by 16t.
Set both parts equat to zero.
The answer is t=16 because when t=0, that is when the rocket is first being fired from the ground, the rocket then returns to the ground after having spent 16 seconds in the air.
Example Question #17 : X And Y Intercept
Find the y-intercept(s) for the circle given by the equation below:
To find the y-intercept for any equation, plug in 0 for x in the original equation.
Simplify
Subtract 25 from both sides
Take the square root of both sides
Subtract 2 from both sides to get the y-intercept.
This circle has one y-intercept.
It is possible for a circle to have one y-intercept, two y-intercepts or no y-intercepts.