Open Up - Grade 8 - Mathematics - Unit 5 - Lesson 3
By Formative Library
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Last updated over 2 years ago
9 Questions
1
1.
Here is an equation that represents a function: 72x+12y=60.
Select all the different equations that describe the same function:
8.F.1
8.F.4
1
2.
Graph a system of linear equations with no solutions.(Show Your work)
Write an equation for each line you graph.(short answer)
8.F.1
8.F.4
1
3.
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.
Write an equation relating the two variables.
8.F.1
8.F.4
1
4.
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.
Rearrange the equation so b is the independent variable.
8.F.1
8.F.4
1
5.
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.
Rearrange the equation so r is the independent variable.
8.F.1
8.F.4
1
6.
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.
Rearrange the equation so r is the independent variable.
8.F.1
8.F.4
1
7.
Solve each equation and check your answer.
2x+4(3-2x)=\frac{3(2x+2}{6}+4
8.F.1
8.F.4
1
8.
Solve each equation and check your answer.
4z+5=-3z-8
8.F.1
8.F.4
1
9.
Solve each equation and check your answer.
\frac{1}{8}q=\frac{q-1}{4}
8.F.1
8.F.4
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