Answer:
<u>y-intercept</u><u> </u><u>is</u><u> </u><u>8</u><u> </u><u>and</u><u> </u><u>slope</u><u> </u><u>is</u><u> </u><u>-</u><u>2</u>
Step-by-step explanation:
General equation of a line:
m » slope
b » y-intercept
Our equation given:
by comparison with general equation
m » -2
b » 8
Answer:
-x + 2
Step-by-step explanation:
x + 5 + (-4x) + (-2) +2x + (-1)
combine like therms
x + (-4x) + 2x = -x
5 + (-2) + (-1) = 2
-x + 2
Answer:
The answer to your question is: This polynomial does not have root, it does not intercept the x-axis.
Step-by-step explanation:
a)
2x² + 4x + 7
To determine the number of roots of this polinomial, just look at the higher power and that number will be the maximum possible number of roots.
In this exercise, the maximum power is 2, so this polynomial could have at most 2 roots.
b) Find the possible roots of the polynomial, which are multiples of 7
Possible roots: ±1, ±7
2x² + 4x + 7
Use synthetic division to find the roots
2 4 7 1
2 6
2 6 13 +1 is not a root
2 4 7 -1
-2 -2
2 2 5 -1 is not a root
2 4 7 7
14 126
2 18 133 +7 is not a root
2 4 7 -7
-14 70
2 -10 -77 -7 is not a root
Answer:
x = 7, x = -3
Step-by-step explanation:
We can find the zeros by factoring the equation using the zero product property.
x^2-4x-21 = 0
(x-7)(x+3) = 0
<u>x-7 = 0</u>
x = 7
<u>x+3 = 0</u>
x = -3
Zeros are x=7 and x= -3.
Answer:
there are 2 terms in this expression