Answer:
That is a tri nomial, a basic level of polynomial
Step-by-step explanation:
A polynomial is an expression containing the algebraic sum of especial terms called monomial, which are variables with an exponent and a coefficient.
The degree of your polynomial is 5, the highest degree that is used by the variable,
Answer:
Only the firsts and fourth choices (
and 
)
Step-by-step explanation:
Turn the equation into words:
"A number plus 9"
"Multiplied by 
"
"Is equals to -18"
Distribute to find the second equation:
We can replace the inequality with qual sign:
2x - y = 4
x + y = -1
We can combine both question
3x = 3
x = 1
Since we know x = 1, we can solve for y by plug in in either equation:
x + y = -1
1 + y =-1
y = -2
or
2x - y = 4
2(1) - y = 4
-y = 2
y = -2
So the solution of this system of equation is the coordinate (1, -2)
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Hope this helps you
