D is the only x-intercept out of the options listed below.
In order to find an x-intercept, you need a value that will cause the y-value to equal 0, since this is where x-intercepts exist.
Automatically, A and B do not work since the y-values in the ordered pairs do not equal 0. By definition they are not x-intercepts. Next we can try the x-values in the equation to see which gives us a 0 y-value.
C
f(x) = (x + 6)(x - 3)
f(6) = (6 + 6)(6 - 3)
f(6) = (12)(3)
f(6) = 36
Since this does not equal 0, it is not an x-intercept.
D
f(x) = (x + 6)(x - 3)
f(-6) = (-6 + 6)(-6 - 3)
f(-6) = (0)(-9)
f(-6) = 0
This shows us that D yields a 0 value for y and is thus a x-intercept.
Answer:
Step-by-step explanation:
Take it in steps. First, find 7/9+6. Then we'll find 8+6/3, and, finally, we'll divide the two answers.
1:
7/9+6 = 7/15
2:
8+6/3 = 14/3
3:
or
Then take that in chunks: 7/14 and 15/3.
7/14 = 1/2
15/3 = 5/1
Use those to rewrite it as .
1/5 = .2
2/3 ≈ .6667 so we'll keep writing it as 2/3
.2/2 = .1, so:
=
Answer:
x=49 or B)49
Step-by-step explanation:
its is a linear pair so that means it is equal to 180 degrees
you equation will be
x-18+149=180 simplify
x+131=180 subtract 131 from both sides
x=49
Answer:
domain { -8,-5}
Range { -7,-1,1}
Step-by-step explanation:
The domain is the input values
{ -8,-5}
We do not list repeated values
The range is the output values
{ -7,-1,1}