The variable x varies jointly with y and z. use x=2, y=4, z=1 to write an equation relating x, y
& z. then find the value of x when y = 2 and z = 4.

Equation is and when y=2 and z=4, x will be 4.

Step-by-step explanation:

Given:

x varies jointly with y and z.

It also means x is directly proportional to y and z.

From above values we can compute the equation as.

Hence the Equation is

Now y=2 and z=4 we get.

Hence when y=2 and z=4, x will be 4.

the answer to the question is a

step-by-step explanation:

it has the same slope and the same y-intercept.

y + 11 = -7/9(x - 18)

y + 11 =-7/9x + 14

b

y = -7/9x + 3

y-intercept (0, 3)

correct answer:

a + bi