Answer:
A. 20x² + y and B. 20x² are polynomials.
Step-by-step explanation:
Let's review each of the expressions given to define which are polynomials:
A. 20x² + y
It's a polynomial because all of the variables have integer exponents that are positive
.
B. 20x²
It's a polynomial because the variable of this monomial have integer exponent that is positive
.
C. 20x² + y ^1/2
It's not a polynomial because a term has a fraction exponent (y ^1/2).
D. 20x²/y
It's not a polynomial because a term has a negative exponent (y ^-1) and there is a variable in the denominator of a fraction.
The answer is 26 :) because that way 26 and 26+4=30
Answer:
Find the "zeros" and plug in points
Step-by-step explanation:
You can tell this graph is a parabola.
We can find the "zeros" of the graph to help us.
Find the zeros:
2x-1=0
2x=1
x=0.5
2x-5=0
2x=5
x=2.5
We can substitute values into f(x)=(2x-1)(2x-5) to graph.
You should get (1.5,-4) to be the vertex.
Hope this helps
