Algebra I – Midterm Exam Review

These flashcards cover key concepts from the Algebra I midterm exam review, including expressions, equations, functions, and properties.

What expression represents the difference of 10 and u?

10 - u

How do you calculate the cost of the Ross family's dinner if each member orders a pasta dish for $11.50, a drink for $1.50, and dessert for $2.75?

Cost = 4 * ($11.50 + $1.50 + $2.75) = $4 * $15.75

What does the Distributive Property state?

a(b + c) = ab + ac

If f(x) = 2x - 6, what is f(2)?

f(2) = 2(2) - 6 = -2

What is the domain of the relation {(4,3), (-2,4), (3,-2), (-2,1)}?

{4, -2, 3}

What expression represents the product of 5 and y?

5y

What is the range of the relation {(4,3), (-2,4), (3,-2), (-2,1)}?

{3, 4, -2, 1}

True or False: A relation is a function if each input has exactly one output.

True

What does the Commutative Property of Addition state?

a + b = b + a

What expression represents "7 less than twice x"?

2x - 7

What does the Associative Property of Addition state?

(a + b) + c = a + (b + c)

If g(x) = x^2 - 5x, what is g(-2)?

g(-2) = (-2)^2 - 5(-2) = 4 + 10 = 14

For a function, what type of values make up the domain?

The set of all possible input (or x) values.