Algebra 1 Review: Adding and Subtracting Rational Expressions

What does combining like terms involve?

• Adding terms with different variables

• Subtracting terms with different exponents

• Adding terms with the same variable and exponent

• Multiplying terms with the same variable

How do you add functions together?

• By multiplying the functions

• By dividing each function

• By combining like terms

• By subtracting like terms

How do you find f + g of x when f(x) = 3x + 7 and g(x) = 10x - 5?

• 13x - 2

• 7x - 2

• 7x + 2

• 13x + 2

What is the result of subtracting f - g of x when f(x) = 8 - 4x and g(x) = -12x + 3?

• 5 + 8x

• -5 + 8x

• 5 - 8x

• 13x + 2

What is the result of subtracting f - g of x when f(x) = 6 + 5x and g(x) = 8 - 7x?

• -2 + 12x

• 2 + 12x

• -2 - 12x

• 14x

What is the result of evaluating f(3) if f(x) = 5x - 2?

• 13

• 15

• 11

• 17

How do you evaluate a function at a specific value?

• By dividing the function by the value

• By replacing the variable with the given value

• By multiplying the function by the given value

• By subtracting the value from the function

What is the first step in solving for y in an equation?

• Dividing both sides by the coefficient of y

• Adding a constant to both sides

• Isolating y using inverse operations

• Multiplying both sides by y

What does solving for y in the equation x = y + 4 involve?

• Subtracting 4 from both sides

• Multiplying both sides by 4

• Adding 4 to both sides

• Dividing both sides by 4

What is the final form of the equation after solving y = x - 5 divided by 4?

• y = (x - 5) / 4

• y = x / 4 - 5

• y = 4x - 5

• y = (4 - x) / 5