Direct and Inverse Variates

Which of the following represents direct variation

Which of the following represents indirect variation?

The width of a rectangle varies inversely with its length. If the width is 6 when the length is 24, give an equation that shows the relationship

Y is directly proportional to the square of z and inversely proportional to w.

The interest received on a savings account varies directly with the amount deposited. Dany received $55.35 in interest on $1230 he deposited. How much interest would Dany have received if she had deposited $2000 into her account?

Y varies inversely with x, and y is 0.5 when x is 4. Which equation represents this situation?

The number of kilograms of water in a person's body varies directly as the person's mass. A person with a mass of 90 kg contains 60 kg of water. How many kilograms of water are in a person whose mass is 75 kg?

y varies directly with the square of x. If y = 20 when x = 4, find y when x = 7

y varies directly as the square of x and inversely with z. If y is 8 when x is 4 and z is 6, find y when x is 8 and z is 4.

y is directly variate to x. If y = 15 when x = 12 find y when x = 32