5/23 Regents review HW

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What is one point that lies in the solution set of the system of inequalities graphed?

• (0, 4)
• (-4, 1)
• (2, 4)
• (4, -1)

What are the zeros of the function f(x) = x² — 13x — 30? 

• —10 and 3
• 10 and —3
• —15 and 2
• 15 and —2

Which correlation coefficient indicates the strongest linear relationship between the variables?

• 0.79
• -0.63
• 0.52
• -0.84

Which function represents exponential decay?

• f(x) = 100(0.9)^x 
• f(x) = 10(1.09)^x 
• f(x) = 1.9^x
• f(x) = ½(9)^x