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2 years ago

In the equation y = kx, if x is doubled, what happens to y? doubles triples quadruples unknown

Mathematics

2 answers:

s344n2d4d5 [400]2 years ago

7 0

Correct answer is
<u>doubles</u>

Molodets [167]2 years ago

7 0

Direct variation describes a simple relationship between two variables . We say y varies directly with x

This means that as x increases, y increases and as x decreases, y decreases

Given equation is y = kx,

if x is doubled,

so plug in x = 2x in the given equation so new y1 will become

y1 = k ( 2x)

y1= 2kx

y1 = 2 y

So y becomes doubles

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Solve for x The value of x is

Varvara68 [4.7K]

Answer:

7x+19 = 11x-89

-19. -19

7x= 11x-108

-11x -11x

-4x=-108

x=27

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2 years ago

Write an expression to represent:<br> Eight minus the quotient of two and a number x

NARA [144]

8 - (2/x) = y (ignore these words the answer was too short lol)

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2 years ago

Read 2 more answers

Find two numbers whose sum is -7 and whose difference is -1. Your answer is:

Katena32 [7]

-3 & -4;

-3 + (-4) = 7

-3-(-4) = -3+4 = 1

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3 years ago

Each course at Mt. Regis College is worth either 3 or 4 credits. The members of the men's swim team are taking a total of 48 cou

kolezko [41]

Answer:

3 Credit Courses = 37

4 Credit Courses = 11

Step-by-step explanation:

1. Set up 2 equations:

3x + 4y = 155

x + y = 48

2. Simplify the second expression for x by subtracting y from both sides

x = 48 - y

3. Substitute 48 - y for x

3(48-y) + 4y = 155

4. Simplify the expression by multiplying by 3

144 - 3y +4y = 155

5. Subtract 144 from both sides and subtract 3y from 4y

y = 11 = 4 Credit Courses

6. Substitute y for equation 2

x = 48-11

7. solve for x

x = 37 = 3 Credit Courses

7 0

3 years ago

Does the table represent a exponential function x 1 2 3 4 y -1 -8 -27 -64

Setler79 [48]

Answer:

No, the given function is not an exponential function.

Step-by-step explanation:

The exponential function is defined as

$f(x)=ab^x$ .... (1)

Where a is initial value and b is growth factor.

From the given table it is noticed that the value of y decreased as the value of x increased by 1. The function is in the form of

$f(x)=-x^3$ .... (2)

$f(1)=-(1)^3=-1$

$f(2)=-(2)^3=-8$

$f(3)=-(3)^3=-27$

$f(4)=-(4)^3=-64$

The function (1) and (2) are not the same type of function.

The table represents the polynomial.

Therefore the required answer is no. The given function is not an exponential function.

8 0

2 years ago