Vocabulary
X-Intercept
Y-Intercept
Practice
Random
100
place on the coordinate plane where the graph of the function crosses the y-axis
What is a y-intercept?
100
The first step to find the x-intercept is
set the function equal to 0 and find what values of x, make the function 0 (solve for x)
100
What is the first step to finding the y-intercept of a rational function?
plug 0 in for all x-values
100
f(x)= 3x-1/2-5x
y=(0,-.5) x=(1/3,0)
100
If the graph is a function how many y-intercepts will you have?
Only one
200
place on the coordinate plane where the graph of the function crosses the x-axis
What is a x-intercept?
200
What is the same as setting the fraction equal to 0?
setting the numerator equal to 0
200
What is the second step for finding the y-intercept?
solve for y
200
2x/x+7
y=(0,0) x=0
200
If you are looking for an x-intercept and the function is 1/5+x then
there is no x-intercept
300
such as a quadratic, a cubic, a quartic, and so on, involving only non-negative integer powers of x
What is a polynomial function?
300
One thing that might have to be done while setting the numerator equal to 0 is
factoring
300
Finding F(0) is the same as
finding the y-intercept
300
x+7/x^2-6x+8
y=(0,-1) x=-7
300
Another way to find intercepts is
graphing the function and looking at it
400
a relationship or expression involving one or more variables
What is a function?
400
What is the y-value of an x-intercept?
0
400
What is the x-value of a y-intercept?
0
400
x^2-6x+8/x+7
y=(0,1.14) x=2,4
400
x^2-3x+2/x-2
y=-1
500
a function in which there is a polynomial function in the numerator and the denominator
What is a rational function?
500
Once you have factored and set them to equal to 0, what comes next?
solve for x
500
How is finding the y-intercept different from finding the x-intercept?
When finding the y-intercept, you have to look at the numerator and the denominator.
500
7x^2-3x+2x^3+6/4X-x^2-2-5x^3
y=(0,-3)
500
x^2-3x+2/(x-2)
x=2 x=1
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