Math III EOC Review #4

Front

What is the formula for the perimeter of a polygon?

Back

The perimeter of a polygon is the sum of the lengths of all its sides.

Front

If a line is tangent to a circle, what does it mean?

Back

A tangent line touches the circle at exactly one point and is perpendicular to the radius at that point.

Front

How do you set up a system of equations for a word problem?

Back

Identify the variables, write equations based on the relationships described in the problem, and ensure the equations represent the same scenario.

Front

What is the value of x in the equation 2x + 4 = 24?

Back

x = 10.

Front

What is the sine function and when is it positive?

Back

The sine function is positive in the first and second quadrants of the unit circle.

Front

What is the end behavior of a polynomial function?

Back

The end behavior describes how the function behaves as x approaches positive or negative infinity.

Front

How do you find the value of x in a linear equation?

Back

Isolate x on one side of the equation using inverse operations.

Front

What does it mean for a function to be decreasing?

Back

A function is decreasing if, as x increases, the value of f(x) decreases.

Front

What is the relationship between the coefficients and the end behavior of a polynomial?

Back

The leading coefficient determines the direction of the end behavior; if it's positive, the function rises to the right, and if negative, it falls to the right.

Front

How do you solve a system of equations using substitution?

Back

Solve one equation for one variable and substitute that expression into the other equation.