What is f(−1) ?
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f(−1)
=
Answer:
f(-1) = 3
Step-by-step explanation:
See the graph shown in the attached file with the given question.
The graph passes through (0.5,0) point on the X-axis and (0,1) point on the Y-axis.
So, the length of the X-intercept is 0.5 and that of Y-intercept is 1.
Hence, the equation of the straight line graph is
{Using the intercept form}
⇒ 2x + y = 1 ....... (1)
Now, y = f(x) = 1 - 2x
Hence, f(-1) = 1 - 2 ( - 1 ) = 3 (Answer)
Coordinate grid with unlabeled points at negative (two, zero), (negative one, three), (zero, two), (one, negative one), (two, zero), (three, two)
B.
Coordinate grid with unlabeled points at (negative (one, negative one), (negative (one, three), (negative four, three), (negative (two, one), (one, one), (two, negative one)
C.
Coordinate grid with unlabeled points at (negative (two, negative two), (negative two, one), (negative one, three), (zero, one), (two, zero), (two, negative two)
D.
Coordinate grid with unlabeled points at (negative two, one), (negative one, three), (zero, two), (zero, negative one), (one, three), (two, one)
Answer:
is triangle with surface area A= 1/2 x z x y
Step-by-step explanation:
because in the picture it shows A on top X and Y on the sides and C,Z and B on the bottom.
Answer:
Additive inverse is (7y² - x²y + 3xy + 7x²).
Step-by-step explanation:
Let the additive inverse of the given polynomial be Y.
Therefore as per definition of additive inverse of any polynomial the addition of a polynomial and additive inverse of any polynomial is always zero.
So Polynomial + additive inverse polynomial = 0
(-7y² + x²y - 3xy - 7x²) + Y = 0
Y = -(-7y² + x²y - 3xy - 7x²) = (7y² - x²y + 3xy + 7x²)
So the additive inverse of the polynomial will be (7y² - x²y + 3xy + 7x²).
Answer:
The answer is A
Step-by-step explanation:
The additive inverse is basically the opposite symbol for the numbers.
So, therefore:
What is the additive inverse of the polynomial?
-7y^2 + x^2y - 3xy - 7x^2
The answer to this would be
7y^2 - x^2y + 3xy + 7x^2
Answer:
Step-by-step explanation:
Use FOIL: (a + b)(c + d) = ac + ad + bc + bd
and i² = -1
(6 + i)(2 + 9i) = (6)(2) + (6)(9i) + (i)(2) + (i)(9i)
= 12 + 54i + 2i + 9i²
= 12 + 54i + 2i + 9(-1)
= 12 + 54i + 2i - 9 combine like terms
= (12 - 9) + (54i + 2i)
= 3 + 56i