3 years ago

Which equation represents a proportional relationship between the x and y values?

Mathematics

2 answers:

allochka39001 [22]3 years ago

5 0

Answer:

y = kx

Step-by-step explanation:

We have to write an equation that states that the relationship between x and y is proportional.

Since x and y are proportional, so we can write symbolically

y ∝ x

⇒ y = kx {Where k is the constant of proportionality}

So, this is the required equation. (Answer)

Geometrically it signifies that it is a straight line having constant slope k and it passes through the origin.

telo118 [61]3 years ago

3 0

Answer:

The answer is D. y = −2x

You might be interested in

Which of the following is equivalent to (n-3)(n-5) a. n2-8n+15, b. n2+8n-15, c. n2-15n+8

solong [7]

Foil the binomials

First: n*n=n^2
Outer: n*-5=-5n
Inner: -3*n=-3n
Last: -3*-5=15

Put it together and simplify
n^2-5n-3n+15
n^2-8n+15

Final answer: A

5 0

3 years ago

Find 2 consecutive positive even integers such that the product of the 1st and 2nd is 2 less than 5 times the 3rd. Use an algebr

Aloiza [94]

Assume the smaller one is x, then the other ones will be x+2 and x+4

x(x+2) + 2 = 5(x+4)

x^2 + 2x - 5x - 18 = 0

-> x^2 - 3x - 18 = 0

-> (x-6)(x+3) = 0

-> x = 6 or -3, since x must be positive, then x = 6

So the numbers are: 6, 8, 10

6 0

3 years ago

Find the length of the arc of the circular helix with vector equation r(t) = 2 cos t i + 2 sin t j + tk from the point (2, 0, 0)

USPshnik [31]

$\vec r(t)=2\cos t\,\vec\imath+2\sin t\,\vec\jmath+t\,\vec k$