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Doss [256]
3 years ago
8

If the input is -8, what is the output? the equation is : f(x) = -6x – 3

Mathematics
2 answers:
Phantasy [73]3 years ago
6 0

Answer:

f(-8) = 45

Step-by-step explanation:

Step 1: Define

f(x) = -6x - 3

x = -8

Step 2: Substitute and Evaluate

f(-8) = -6(-8) - 3

f(-8) = 48 - 3

f(-8) = 45

Tamiku [17]3 years ago
5 0
The output would be -51
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Which value must be added to the expression x2 – 3x to make it a perfect-square trinomial?
Vitek1552 [10]

Answer:

\frac{9}{4}

Step-by-step explanation:

Given

x² - 3x

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add ( half the coefficient of the x- term )²

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x² - 3x + \frac{9}{4}

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3 years ago
Find the product. (x-3)^2
r-ruslan [8.4K]
Greetings and Happy Holidays!

Find the Product:
(x-3)^2

Expand:

=(x-3)(x-3)

Use FOIL or other techniques to solve binomial multiplication:
=x(x-3)-3(x-3)

=x^2-3x-3(x-3)

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The Answer Is:
\boxed{=x^2-6x+9}

I hope this helped! 
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3 0
3 years ago
Y=x+1 and y=-x-3 in graphing,Substitution,and elemination
marysya [2.9K]

\left\{\begin{array}{ccc}y=x+1\\y=-x-3\end{array}\right\\\\GRAPHING\ \text{(look at the picture)}\\\\y=x+1\\for\ x=0\to y=0+1=0\to(0,\ 1)\\for\ x=-1\to y=-1+1=0\to(-1,\ 0)\\\\y=-x-3\\for\ x=0\to y=-0-3=-3\to(0,\ -3)\\for\ x=-3\to y=-(-3)-3=0\to(-3,\ 0)\\\\Solution:\ (-2,\ -1)


SUBSTITUTION\\\\\left\{\begin{array}{ccc}y=x+1\\y=-x-3\end{array}\right\\\\\text{substitute}\ y=-x-3\ \text{to the first equation}\\\\-x-3=x+1\ \ \ \ |+3\\-x=x+4\ \ \ \ |-x\\-2x=4\ \ \ \ |:(-2)\\x=-2\\\\\text{substitute the value of x to the second equation}\\\\y=-(-2)-3=2-3=-1\\\\Solution:\ (-2,\ -1)


ELIMINATION\\\\\underline{+\left\{\begin{array}{ccc}y=x+1\\y=-x-3\end{array}\right}\ \ \ |\text{add both sides of the equations}\\.\ \ \ \ 2y=-2\ \ \ \ |:2\\.\ \ \ \ \ \ y=-1\\\\\text{put the value of y to the first equation}\\\\-1=x+1\ \ \ \ |-1\\x=-2\\\\Solution:\ (-2,\ -1)

5 0
3 years ago
Ye Li drew a quadrilateral that is both a rectangle and a rhombus. Name the quadrilateral and describe it using the properties o
son4ous [18]
We must look first for the properties given, so we have:
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6 0
3 years ago
Read 2 more answers
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