Algebra 1 - Semester 1 Exam Review

Front

What is the value of x in the equation 2x + 3 = 5?

Back

x = 1

Front

Solve the system of equations: 2x + y = 10 and x - y = 2.

Back

(4, 2)

Front

Which inequality represents the graph that is shaded below the line y = 2x + 1?

Back

y ≤ 2x + 1

Front

Determine the slope and y-intercept from the equation: y = -4x + 5.

Back

slope: -4, y-intercept: (0, 5)

Front

Which of the following relations is not a function: {(1, 2), (1, 3), (2, 4), (3, 5)}?

Back

It is not a function because the input 1 has two different outputs.

Front

What is the definition of a function?

Back

A relation where each input has exactly one output.

Front

How do you find the slope of a line given two points (x1, y1) and (x2, y2)?

Back

slope = (y2 - y1) / (x2 - x1)

Front

What is the quadratic formula used to solve ax^2 + bx + c = 0?

Back

x = (-b ± √(b² - 4ac)) / (2a)

Front

What does it mean for a system of equations to be consistent?

Back

It means there is at least one solution.

Front

What is the difference between a linear equation and a quadratic equation?

Back

A linear equation has a degree of 1, while a quadratic equation has a degree of 2.