SAT Test review

Front

What is the proportional relationship in a recipe when increasing the number of eggs?

Back

When increasing the number of eggs in a recipe, all other ingredients must be increased proportionally to maintain the same ratio of ingredients to servings.

Front

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

Back

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

Front

What is the simplified form of the expression 4x(x) - 3xy(2x)?

Back

The simplified form is 2x^2(2 - 3y).

Front

What property of addition is demonstrated by (x+y) + z = (z+y) + x?

Back

This demonstrates the Associative Property of Addition, which states that the way in which numbers are grouped does not change their sum.

Front

What is the result of simplifying (1/3)(21m + 27)?

Back

The result is 7m + 9.

Front

What is the definition of a linear equation?

Back

A linear equation is an equation of the first degree, meaning it has no variables raised to a power greater than one.

Front

What does it mean for an equation to be balanced?

Back

An equation is balanced when both sides have the same value, meaning the expressions on both sides of the equal sign are equivalent.

Front

What is the formula for the area of a triangle?

Back

The area (A) of a triangle is given by the formula: A = (1/2) * base * height.

Front

What is the difference between a rational and an irrational number?

Back

A rational number can be expressed as a fraction of two integers, while an irrational number cannot be expressed as a simple fraction.

Front

What is the quadratic formula used for?

Back

The quadratic formula is used to find the solutions (roots) of a quadratic equation in the form ax^2 + bx + c = 0, given by: x = (-b ± √(b² - 4ac)) / (2a).