jazmin9415 jazmin9415
  • 13-06-2019
  • Mathematics
contestada

If y varies directly as x, and y = -4 when x= 2, find y when x= -6

Respuesta :

ekefrank
ekefrank ekefrank
  • 18-06-2019

Answer:Y = 12

Step-by-step explanation:

Y varies ditectly as x

Y = kx

When y = -4, x = 2

Substitute the value of x and y into Y = kx

-4 = k * 2

Make k the subject of the formula

k = -4/2

k = -2

:. The equation connecting Y and x is

Y = -2x------

When x = -6

Y = -6*-2

Y = 12

Answer Link

Otras preguntas

Given the functions k(x) = 5x − 8 and p(x) = x − 4, solve k[p(x)] and select the correct answer below. a. k[p(x)] = 5x − 12 b. k[p(x)] = 5x − 28 c. k[p(x)] = 5x
explain how the physical landscape and has affected the development of agriculture and industry in the ancient world
express 79.2% as a decimal.
Why are small leaves an adaptation in a desert environment? a. They trap less water. b. They minimize water loss. c. They absorb more light. d. They fall ou
the mobile company charges 180 for an hour of service. how many dollars are customers charging every minute
Which of the following expressions is a factor of the polynomial x ^ 2 +3/2 x - 1? a. x-1/2 b. x-2 c. x-1 d. x+3/2
The stage of change that involves the greatest commitment of time and energy is the _______ stage. a. contemplation b. preparation c. action d. maintena
if five times a number is plus two is 17 what is the number
Which of the following expressions is a factor of the polynomial x ^ 2 +3/2 x - 1? a. x-1/2 b. x-2 c. x-1 d. x+3/2
The difference between a number and eleven is three more than half the number