Algebra 1 Midterm Review

Front

What is the y-intercept of a line?

Back

The y-intercept is the point where the line crosses the y-axis. It is represented as (0, b) where b is the y-intercept value.

Front

How do you find the slope between two points (x1, y1) and (x2, y2)?

Back

The slope (m) is calculated using the formula: m = (y2 - y1) / (x2 - x1).

Front

What are natural numbers?

Back

Natural numbers are the set of positive integers starting from 1, i.e., 1, 2, 3, 4, ...

Front

What is the definition of an irrational number?

Back

An irrational number cannot be expressed as a fraction of two integers. Its decimal representation is non-repeating and non-terminating.

Front

What is the formula for the slope-intercept form of a line?

Back

The slope-intercept form is given by the equation: y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you solve for c in the equation 3 = \frac{c}{-11}?

Back

To solve for c, multiply both sides by -11: c = 3 * -11 = -33.

Front

What is the difference between rational and irrational numbers?

Back

Rational numbers can be expressed as a fraction of two integers, while irrational numbers cannot.

Front

What is the formula to find the y-intercept from a linear equation?

Back

To find the y-intercept from the equation y = mx + b, set x = 0 and solve for y.

Front

What does it mean for a number to be classified as real?

Back

Real numbers include all rational and irrational numbers, representing all points on the number line.

Front

How do you determine if a number is a natural number?

Back

A natural number is a positive integer greater than zero, excluding fractions and negative numbers.