pjroldan01 pjroldan01

01-02-2018
Mathematics

contestada

The value of y varies directly with x, and y=1 when x=2.

Find y when x=4

Respuesta :

ggxrcia ggxrcia

01-02-2018

Direct variation: y=kx
k = constant of variation

Solve for k when y=1 and x=2
1 = 2 · k
k = 1/2

y = 1/2 · x

Solve for y when x=4
y = (1/2) · (4)
y = 2

Answer Link

Otras preguntas

Two triangles that have the same side length will always be congruent true or false?

I have to solve x^2-6x+8=0 by factoring, quadratic equation, and completing the square. I did this and got different answers for all of them. Please help me und

Which linear function represents the line given by the point-slope equation y-8= 1/2(x-4)

The inequality x > y is satisfied by point (5, 5). true false

What is true about the statement describing the word point?

What city is believed to be the oldest of the indus river valley civilization?

When analyzing a passage for suspense, which feature is important to note?

If an object has a mass of 50 kilograms, what would it weigh on Uranus, where the acceleration due to gravity is 10.5 meters/second2?

triangle abc is similar to triangle fgh. angle a measures 42 degrees. angle g measures 49 degrees. find the measure of angle h. 42 89 119 49

south africa is africa's most developed nation and the home of the boer people. true or false