Here is an equation that represents a function: 72x+12y=60.Select [b]all[/b] the different equations that describe the same function:[list=1][*]120y+720x=600[/*][*]y=5−6x[/*][*]2y+12x=10[/*][*]y=5+6x[/*][*]x=56−y6[/*][*]7x+2y=6[/*][*]x=56+y6[/*][/list]

[list=1][*]Graph a system of linear equations with no solutions.[/*][*]Write an equation for each line you graph.[/*][/list][img]https://cdn.openupresources.org/uploads/pictures/8/8.4.C13.PP.4quadgraph.png[/img]

Brown rice costs $2 per pound, and beans cost $1.60 per pound. Lin has $10 to spend on these items to make a large meal of beans and rice for a potluck dinner. Let b be the number of pounds of beans Lin buys and r be the number of pounds of rice she buys when she spends all her money on this meal.[list=1][*]Write an equation relating the two variables.[/*][*]Rearrange the equation so b is the independent variable.[/*][*]Rearrange the equation so r is the independent variable.[/*][/list]

The amount Lin’s sister earns at her part-time job is proportional to the number of hours she works. She earns $9.60 per hour.[list=1][*]Write an equation in the form y=kx to describe this situation, where xrepresents the hours she works and y represents the dollars she earns.[/*][*]Is y a function of x? Explain how you know.[/*][*]Write an equation describing x as a function of y.[/*][/list]