SAT Math Flashcard Week 1

Front

Evaluate the function g(x) = x² - 2x + 1 for x = -1

Back

g(-1) = (-1)² - 2(-1) + 1 = 1 + 2 + 1 = 4

Front

Find the area of a triangle with base 5 cm and height 8 cm

Back

Area = 1/2 * base * height = 1/2 * 5 * 8 = 20 cm²

Front

Find the perimeter of a rectangle with length 10 cm and width 6 cm

Back

Perimeter = 2(length + width) = 2(10 + 6) = 32 cm

Front

Simplify the expression: 4³ ÷ 4²

Back

4³ ÷ 4² = 4^(3-2) = 4¹ = 4

Front

Find the value of x in the quadratic equation: 2x² - 5x + 2 = 0

Back

Using the quadratic formula x = [5 ± √(25 - 16)] / 4 = [5 ± 3] / 4; x = 2, 1/2

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height

Front

What is the formula for the perimeter of a rectangle?

Back

Perimeter = 2(length + width)

Front

What is the quadratic formula?

Back

x = [-b ± √(b² - 4ac)] / 2a

Front

What does it mean to simplify an expression?

Back

To reduce an expression to its simplest form by combining like terms and performing operations.

Front

What is the value of x in the equation x² = 16?

Back

x = ±4