Reporting Category Two Algebra

Which graph best represents the solution set of y≤-4x?

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Which situation best represents causation?

• When the number of bus stops increases, the number of car sales decreases.

• When fewer firefighters report to a house fire, the damage caused by the fire decreases.

• When ice cream sales increase, incidents of sunburn increase.

• When it rains several inches, the water level of a lake increases.

A lifeguard earns $320 per week for working 40 hours plus $12 per hour worked over 40 hours. A lifeguard can work a maximum of 60 hours per week. Which Graph best represents the lifeguard's weekly earnings in dollars for working h hours over 40?

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What is the slope of the line represented by 5x-12y=24?

• -2

• 24/5

• -12

• 5/12

The table shows the heights and the lengths of several rectangles.

What does the correlation coefficient for the data indicate about the strength of the linear association between the height and the length of these rectangles?

• Weak negative correlation

• Strong negative correlation

• Weak positive correlation

• Strong positive correlation

The graph models the linear relationship between the temperature of Earth's atmosphere and the altitude above sea level.

Which of these best represents the rate of change of the temperature with respect to altitude?

• -6.5 C/km

• -3.5 C/km

• -0.29 C/km

• -0.15 C/km

The line graphed on the grid represents the first of two equations in a system of linear equations.

If the graph of the second equation in the system passes through the points (-12,20) and (4,12), which statement is true?

• The only solution to the system is (10,5)

• The only solution to the system is (0,14)

• The system has no solution

• The system has an infinite number of solutions

The graph of a function is shown on the grid. Which ordered pair best represents the location of the y-intercept?

• (1/3,0)

• (0,-2)

• (0,1/3)

• (-2,0)

Which ordered pair is in the solution set of y ≥1/3x+4?

• (-6,1)

• (-1,6)

• (6,-1)

• (1,-6)

The graph of linear function g is shown on the grid. What is the zero of g?

• 3

• -8

• -6

• -9