Algebra Regents Review

Front

What is another word for zeros?

Back

Roots

Front

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

Back

f(x) = 100(0.9)^x

Front

Which correlation coefficient indicates the strongest linear relationship between the variables? 0.79, -0.63, 0.52, -0.84

Back

-0.84

Front

What is one point that lies in the solution set of the system of inequalities graphed? (0, 4), (-4, 1), (2, 4), (4, -1)

Back

(-4, 1)

Front

The function f(x)=3x+10 models the total cost Katie charges to babysit x amount of children. What is the most appropriate domain for the function? All rational numbers, All integers, All non-negative rational numbers, All non-negative integers

Back

All non-negative integers

Front

What is the definition of a linear function?

Back

A function that can be graphically represented as a straight line, defined by the equation f(x) = mx + b, where m is the slope and b is the y-intercept.

Front

What is the slope-intercept form of a linear equation?

Back

y = mx + b, where m is the slope and b is the y-intercept.

Front

What does the vertex of a parabola represent?

Back

The highest or lowest point of the parabola, depending on its orientation.

Front

What is the quadratic formula used for?

Back

To find the solutions (roots) of a quadratic equation in the form ax^2 + bx + c = 0, given by x = (-b ± √(b² - 4ac)) / (2a).

Front

What is the difference between independent and dependent variables?

Back

Independent variables are manipulated or changed, while dependent variables are measured or observed in response.