Algebra 1 Midterm Review

Front

What is the equation of a line given a slope of 3 and a y-intercept of -9?

Back

y = 3x - 9

Front

What type of numbers best represent the domain of a graph showing a dolphin's jump over time?

Back

Positive real numbers

Front

Write the system of inequalities for Eiko's caricature drawings given her time and earnings constraints.

Back

10x + 25y ≥ 200, 15x + 45y ≤ 480

Front

Identify the sequence that is NOT an arithmetic sequence: -7, -13, -19, -25; -10, -6, -2, 2; 6, 8, 10, 12; 3, 15, 75, 375.

Back

3, 15, 75, 375,... is NOT an arithmetic sequence.

Front

What is the equation of a quadratic function translated up 5 units?

Back

y = x² + 5

Front

Define an arithmetic sequence.

Back

An arithmetic sequence is a sequence of numbers in which the difference between consecutive terms is constant.

Front

What is the formula for the nth term of an arithmetic sequence?

Back

a_n = a_1 + (n-1)d, where a_1 is the first term and d is the common difference.

Front

What is a quadratic function?

Back

A quadratic function is a polynomial function of degree 2, typically in the form y = ax² + bx + c.

Front

How do you determine if a sequence is arithmetic?

Back

Check if the difference between consecutive terms is constant.

Front

What does the vertex of a parabola represent in a quadratic function?

Back

The vertex represents the maximum or minimum point of the parabola.