6.4 Writing Equations in Two Variables

6.4 Writing Equations in Two Variables

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Learning Target

I can write equations in two variables and analyze the relationship between the two quantities.

Success Criteria 1

• I can determine whether an ordered pair is a solution of an equation in two variables.

• Watch the following video, then complete your notes

Multiple Choice

Tell whether the ordered pair is a solution of the equation

y=7x (2,21)

• yes

• no

Multiple Choice

Tell whether the ordered pair is a solution of the equation

y=5x+1 (3,16)

• yes

• no

Multiple Choice

Tell whether the ordered pair is a solution of the equation

y=3x (3,6)

• yes

• no

Multiple Choice

Tell whether the ordered pair is a solution of the equation

y=2x + 1 (2,5)

• yes

• no

Success Criteria 2

• I can distinguish between independent and dependent variables

• Watch the following video, then complete your notes

Multiple Choice

The equation y=10x+25 represents the amount y (in dollars) in your savings account after x weeks.

Is X the independent or dependent variable?

• Independent

• Dependent

Multiple Choice

The equation y=16-2x represents the amount y (in ounces) of trail mix remaining after you eat x servings.

Is y the independent or dependent variable?

• independent

• dependent

Success Criteria 3

• I can write and graph an equation in two variables

• Watch the following video, then complete your notes

Success Criteria 4

• I can create equations in two variables to solve real-life problems

• Watch the following videos, then complete your notes