Algebra 1 Quarter 4 Summative

What is the equation in slope-intercept form of the line that passes through the points (-26, -11) and (39, 34)?

The value of y is directly proportional to the value of x. When x = 512, y = 128. What is the value of y when x = 64?

Mathematical Equivalence

ON

What is the equation in standard form of the line that passes through the point (6, -1) and is parallel to the line represented by 8x + 3y = 15?

• 8x + 3y = -45

• 8x - 3y = -51

• 8x + 3y = 45

• 8x - 3y = 51

The graph of a linear function is shown on the grid. Which function is best represented by this graph?

The values in the table represent a linear relationship between x and y. What is the rate of change of y with respect to x?

• 10

• 17

• -10

• -17

Which situation shows causation?

• When the number of people in a bus increases, the number of animals in a zoo also increases.

• When the number of hours worked each week by an hourly employee decreases, the amount of money earned by the employee also decreases.

• When the amount of a discount for a sale increases, the number of items sold during the sale decreases.

• When the number of bike trails in a city decreases, the amount of rainfall in the city increases.

Which situation best shows causation?

• The length of a rectangle affects the width of the rectangle.

• The amount of time a cell phone is used affects the charge of its battery.

• The number of ice-cream bars sold affects the number of milkshakes sold.

• The number of soccer balls a team owns affects the number of games the team wins during the soccer season.

Mathematical Equivalence

ON