Applications Using Direct Variation

Topic Page

Questions

• What are some examples of direct variation in real life?
• How can you use direct variation to solve real life problems?
• How do you find the direct variation equation if y varies directly as x when #x=4#, #y=48#?
• How do you find the direct variation equation if d varies directly as t when #t=7#, #d=329#?
• What is the constant of proportionality "k" if m is directly proportional to h when #m=461.50#, #h=89.6#?
• How do you find the direct variation equation if z is directly proportional to r when #r=412#, #z=51.5#?
• Wesley earns $6.50 per hour at the bookstore. The total amount of his paycheck varies directly with the number of hours he works. How do you write a direct variation equation for the amount of money y Wesley earns for working x hours?
• The money Sam earns(m) varies directly with the number of hours she baby sits(h). She earns $50 for five hours, how do you write the equation?
• Question #fe135
• Can someone please explain what direct proportion means and give real-life examples?
• The value of y varies directly with x, and y= -8 when x=2. How do you find y when x=3?
• Suppose a varies jointly with #b# and #c# and inversely with #d# and #a = 400# when #b = 16#, #c=5#, and #d = 2#. What's the equation that models the relationship?