ttes8049 ttes8049
  • 26-05-2021
  • Mathematics
contestada

When y is directly proportional to x, the value of y = -2 when x = 4. What is the value of y when x = 8?

Respuesta :

adefunkeadewole adefunkeadewole
  • 27-05-2021

Answer:

y = -4

Step-by-step explanation:

When y is directly proportional to x,

= y ∝ x

= y = kx

Finding k

the value of y = -2 when x = 4

-2 = k4

k = -2/4

k = -1/2

. What is the value of y when x = 8

Finding y

y = kx

y = -1/2 × 8

y = -4

Answer Link

Otras preguntas

Find the missing side lengths. Leave your answers as radicals in simplest form. 10 POINTS!!! ANSWER PLZ
A scientist thinks that a certain chemical is a mutagen. She exposes plant cells to a large amount of this chemical in the laboratory. Which statement best prov
In a certain population of rabbits one year, 25 new rabbits are born and 5 move into the population from surrounding areas. However, 10 rabbits die, and 5 leave
Why did Napoleon attack Russian Empire?
Express as a fraction 12 1\2%
Please help!!! Question is posted as a pic! Thank you
what mass of calcium nitrate can be prepared by the reaction of 18.9 grams of nitric acid with 7.4 grams of calcium hydroxide
An 820 N Marine in basic training climbs a 12.0-m vertical rope at a constant speed in 8.00 s. What is her power output
Os mais famosos templos foram construídos por volta de 1500 a.C. , quando o Egito se tornava uma potência política e econômica.Cite o nome de dois dos templos q
How does the phrase "appetite above patriotism" help Roosevelt achieve his purpose?