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marta [7]
3 years ago
13

Let the function f(x) have the form f(x) = Acos(x-C). To produce a graph that

Mathematics
2 answers:
Gala2k [10]3 years ago
6 0

Answer:

A has to be 2

Step-by-step explanation:

In the expression f(x)=A*cos(x-C), the multiplicative factor A represents what is called the "amplitude of the wave-shaped function that you obtain as the graph. Such amplitude is understood as half of the crest-to-through distance of the wavy curve.

From the drawing, the crest is at y=2 and the through at y=-2 (a distance of 4 units) therefore the value of A should be half of that distance: 4/2 = 2

Mrac [35]3 years ago
3 0

Answer: 2

Step-by-step explanation:

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A computer repair technician charges $50 to make a house call plus $75 for each hour spent fixing a computer. This relationship
liraira [26]
Answer:

<span>A. The set of all ordered pairs (x,y) that are solutions to the equation

</span><span>C. The cost of fixing a computer in x amount of time.</span><span>

</span>
8 0
2 years ago
Find the Y-intercept and x-intercept of the line: 4x- 6y=21
zimovet [89]

Answer:

Step-by-step explanation:

4x-6y=21

divide by 21

\frac{4x}{21} -\frac{6y}{21} =1\\or~\frac{x}{\frac{21}{4} } +\frac{y}{-\frac{7}{2} } =1\\x~intercept =\frac{21}{4} =5.25 \\y~intercept=-\frac{7}{2} =-3.5

6 0
3 years ago
Read 2 more answers
PLEASE HELP!!! GIVING 40 POINTS!!!
Jobisdone [24]

Answer:

a no solution

b is all real numbers

c x=12

Step-by-step explanation:

a has no values of x that make it true

b any value of x makes it true

c simplify both sides of the equation then isolate x


4 0
3 years ago
Solve x2 - 8x - 9 = 0.<br><br> Rewrite the equation so that it is of the form <br> x2 + bx = c.
stira [4]
X^2 - 8x-9=0
D = b^2- 4*a*c = 64- 4* (-9) = 64+36=100 =10^2
X1 = (8-10)/2 = -1
X2= (8+10)/2= 9


7 0
3 years ago
20 POINTS! Please help
Marysya12 [62]

The complete square will be  (x-3)^{2} = 3

Step-by-step explanation:

Given,

2x^{2} -12x+12=0

or, x^{2} -6x+6=0 [ by eliminating 2 from both the sides]

To make it square

x^{2} -6x+6=0

or, x^{2} -2xX3+9-9+6=0 [ (a+b)^{2}=a^{2} +2ab+b^{2}

or, (x-3)^{2} = 9-6

or, (x-3)^{2} = 3

Hence the correct option is B

3 0
3 years ago
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