All Intermediate Geometry Resources
Example Questions
Example Question #231 : Coordinate 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
Â
Â
Example Question #14 : 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 #11 : 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?Â
256 seconds
8 seconds
0 seconds
16 seconds
16 seconds
To solve, you must find the zeros or x-intercepts for the function h(t).Â
To find x-intercepts, we must plug in 0 for h(t).Â
Factor to solve - divide by 16t.Â
Set both parts equat to zero.Â
  Â
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.Â
Â
Example Question #17 : How To Find X Or Y Intercept
Find the y-intercept(s) for the circle given by the equation below:Â
To find the y-intercept for any equation, plug in 0 for x in the original equation.Â
Simplify
Subtract 25 from both sides
Take the square root of both sides
Subtract 2 from both sides to get the y-intercept.Â
This circle has one y-intercept.Â
It is possible for a circle to have one y-intercept, two y-intercepts or no y-intercepts.Â
Example Question #18 : How To Find X Or Y Intercept
Find the x-intercept(s) for the circle defined by
The x-intercepts occur when y is equal to zero. So to figure out the x-intercepts, plug in 0 for y:
subtract 9 from both sides
take the square root of both sides
there are 2 possibilities here since
and also
One solution: subtract 1 from both sides
Â
The other solution: subtract 1 from both sides
Example Question #1521 : Intermediate Geometry
Find the y-intercept(s) for the equation
The y-intercept occurs when x is 0, so plug in 0 for x:
Â
Example Question #20 : How To Find X Or Y Intercept
Find the x- and y-intercepts for the equation
To find the x-intercept, plug in 0 for y:
subtract 5 from both sides
divide both sides by -2
since x is 2.5 and y is 0, this point is
Â
To find the y-intercept, plug in 0 for x:
This gives the point
Example Question #1522 : Intermediate Geometry
Find the -intercept for the lineÂ
.
Start by putting the equation into  form, whereÂ
 is the slope, andÂ
 is the y-intercept.
By definition, the x-intercept is where the line crosses the x-axis. As such, the y-coordinate of this point must be .Â
Plug  in forÂ
 in the equation for this line.
Now, solve for .
The x-intercept is found at .
Example Question #22 : How To Find X Or Y Intercept
Find the x-intercept for the line .
Start by putting the equation into  form, whereÂ
 is the slope, andÂ
 is the y-intercept.
By definition, the x-intercept is where the line crosses the x-axis. As such, the y-coordinate of this point must be .Â
Plug  in forÂ
 in the equation for this line.
Now, solve for .
The x-intercept is found at .
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