Semester exam review

Front

Factor: x² - 25

Back

(x + 5)(x - 5)

Front

Which graph matches the inequality r ≥ -6?

Back

Graph A

Front

Factor: 15x² + 12x + 27

Back

(5x + 1)(3x + 5)

Front

What is the quotient of these fractions in lowest terms? 6/40

Back

3/5

Front

Use long division algorithm: Divide 8x² + 4x by 2x + 2

Back

4x + 2

Front

What is the quadratic formula?

Back

x = (-b ± √(b² - 4ac)) / 2a

Front

Define a polynomial function.

Back

A function that can be expressed in the form f(x) = a_nx^n + a_(n-1)x^(n-1) + ... + a_1x + a_0.

Front

What is the difference of squares?

Back

a² - b² = (a + b)(a - b)

Front

How do you find the slope of a line?

Back

Slope (m) = (y₂ - y₁) / (x₂ - x₁) for two points (x₁, y₁) and (x₂, y₂).

Front

What is the standard form of a linear equation?

Back

Ax + By = C, where A, B, and C are constants.