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Natasha_Volkova [10]
3 years ago
14

Can someone help me

Mathematics
1 answer:
Rama09 [41]3 years ago
4 0

If x and y vary inversely, then xy = const.

x = 10, y = 8

xy=10\cdot8\\\\xy=80\ \ \ \ |:x\\\\\boxed{y=\dfrac{80}{x}}

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According to the graph what is the value of the constant in the equation below
pochemuha
As you can see in the picture, all the points lie on the same line, so they are collinear. The line follows an equation with the general form of:

y = mx + b
where m and b are the constants

The b parameter is the y-intercept. This is the point at which the line intersects the y-axis. From the graph, b = 0. The other constant is the slope m. You can choose any two points, the answer would just be the same.

m = (y₂ - y₁)/(x₂ - x₁)
Suppose point 1 is (2,1) and point 2 is (3,1.5).

m = (1.5 - 1)/(3 - 2) = 1/2 or 0.5

Therefore, the answer is either 0 or 0.5. From the choices, the answer would be letter C.
6 0
3 years ago
Which of the following statements cannot be assumed from the diagram?
mrs_skeptik [129]

Answer:

Can you give me any more context?

5 0
4 years ago
What is the y-intercept of a line perpendicular to y=1/2x + 6 that passes through the point (4,-3)
SCORPION-xisa [38]

Answer:

(0,5)

Step-by-step explanation:

Perpendicular lines have slopes which are negative reciprocals of each other. The slope of the line y=1/2x + 6 is 1/2. The slope perpendicular to it is -2.

Using m=-2, substitute it and (4,-3) into the point slope form and simplify to find the y-intercept.

y-y_1 = m(x-x_1)\\y--3=-2(x-4)\\y+3=-2(x-4)\\y+3=-2x+8\\y=-2x+5

The equation is now in slope intercept form y=mx+b and b is the y-intercept. The y-intercept of y=-2x+5 is (0,5).

6 0
3 years ago
How to find vertical asymptotes of cotangent function?
Wittaler [7]

Vertical asypmtotes are line of the form x = k, where k is a point not in the domain of the function.

Since the definition of the cotangent function is

\cot(x) = \dfrac{\cos(x)}{\sin(x)}

The function is not defined where the denominator is zero, i.e.

\sin(x) = 0 \iff x = k\pi,\ k \in \mathbb{Z}

So, every line with equation x = k\pi is a vertical asymptote for the cotangent function. Some examples may be

x = 0,\ x = \pi,\ x = -3\pi,\ x = 152\pi,\ x = -234\pi,\ldots

3 0
4 years ago
What are the solutions to –2x+ 2 = (3) +1?
Sati [7]

Answer:

x=1

Step-by-step explanation:

Let's solve your equation step-by-step.

2x+2=3+1

Step 1: Simplify both sides of the equation.

2x+2=3+1

2x+2=(3+1)(Combine Like Terms)

2x+2=4

2x+2=4

Step 2: Subtract 2 from both sides.

2x+2−2=4−2

2x=2

Step 3: Divide both sides by 2.

2x2=22

x=1

4 0
3 years ago
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