Graphing the Relationship Between Two Variables

A math teacher observed that as the number of hours students studied their multiplication facts increased, the number of errors the students made on their multiplication tests decreased. Which scatterplot could support this teacher's observation?

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a method of solving a system of equations by graphing each equation and identifying the point where they intersect or if they do not intersect

• graphing

• evaluate

• elimination

• substitution

What is the definition of linear functions?

• A set of two or more equations containing a set of common variables

• A relationship between two variables resulting in a straight line

• An algebraic equation that can be written in slope-intercept form

• The point where the input is zero

What is the slope?

• A set of two or more equations containing a set of common variables

• A relationship between two variables resulting in a straight line

• An algebraic equation that can be written in slope-intercept form

• The constant rate of change relating the two variables in a linear function

What are points of intersection?

• To understand and make sense of a math problem, equation, or graph

• To look at information to gain a deeper understanding or draw conclusions

• Specific locations where two or more lines meet on a graph

• A pair of straight lines that run in the same direction and never intersect

What is the definition of linear equations?

• A set of two or more equations containing a set of common variables

• A relationship between two variables resulting in a straight line

• An algebraic equation that can be written in slope-intercept form

• The point where the input is zero

What is the y-intercept?

• A set of two or more equations containing a set of common variables

• A relationship between two variables resulting in a straight line

• An algebraic equation that can be written in slope-intercept form

• The point where the input is zero

Which function represents the function displayed in the table?

• 4x - 3

• x + 4

• 2x + 10

• 7x + 3

Which rule describes the relationship between the x

y- coordinates on line m?

• y = x+1

• y = 2x−1

You are doing chores to earn your allowance. For each chore you do, you earn $3. In the equation below, c is the number of chores you do, and d is the number of dollars you earn.

The relationship between these two variables can be expressed by the following equation: d=3c

Identify the dependent and independent variables.

• c is the independent variable and d is the dependent variable

• d is the independent variable and c is the dependent variable