Section 1.2 – Algebraic Expressions

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Presentation transcript:

Section 1.2 – Algebraic Expressions Evaluate each expression for the given variable values: A) 3x + 2y – 7x + 4y; x = -2, y = 5 B) 3(a + b) – 2(3a + 4b); a = 1, b = -8 C) -r2 + 5r – 4; r = -3

The expression 16t2 models falling distance (in feet) The expression 16t2 models falling distance (in feet). Find the distance an object drops in: 0.5 sec, 1 sec, 3 sec The expression 2000(1.3)t represents the value of an investment. Find the value after: 2 years, 15 years, 50 years

Simplify by combining like terms: A) x(x – y) + 3y(x -2y) B) a2 + 3a2 + 2a C) 3(2x – 1) – 8

Find the perimeter: