Math 4 Exam Review

Front

What is the value of f(x) when x = 3 if f(x) = 2?

Back

f(3) = 2.

Front

Given f(x)= -3x+7 and g(x)=2x² - 8, what is f(g(x))?

Back

f(g(x)) = -6x² + 31.

Front

What does the end behavior of a polynomial indicate about its degree?

Back

The end behavior indicates whether the degree is odd or even.

Front

What percent of students have a height between 58 inches and 60 inches if the answer is 25%?

Back

25% of students have a height between 58 inches and 60 inches.

Front

According to the empirical rule, what percentage of data falls within 1 standard deviation?

Back

68% of data falls within 1 standard deviation.

Front

Define a polynomial function.

Back

A polynomial function is a function that can be expressed in the form f(x) = a_nx^n + a_(n-1)x^(n-1) + ... + a_1x + a_0, where a_n, a_(n-1), ..., a_0 are constants and n is a non-negative integer.

Front

What is the difference between a linear function and a quadratic function?

Back

A linear function has the form f(x) = mx + b, while a quadratic function has the form f(x) = ax² + bx + c.

Front

What is the standard form of a quadratic equation?

Back

The standard form of a quadratic equation is ax² + bx + c = 0.

Front

What is the vertex of a parabola?

Back

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

Front

What is the axis of symmetry in a quadratic function?

Back

The axis of symmetry is a vertical line that divides the parabola into two mirror-image halves.