ACT Math Practice

Front

What is the formula for calculating the value of a quadratic expression?

Back

The value of a quadratic expression can be calculated using the formula: ax² + bx + c, where a, b, and c are constants.

Front

How do you evaluate an expression with given values for variables?

Back

To evaluate an expression, substitute the given values for the variables into the expression and perform the arithmetic operations.

Front

What does it mean for one expression to exceed another?

Back

One expression exceeds another if its value is greater than the value of the other expression.

Front

What is the significance of the coefficients in a quadratic expression?

Back

The coefficients (a, b, c) determine the shape and position of the parabola represented by the quadratic expression.

Front

How do you find the difference between two expressions?

Back

To find the difference between two expressions, subtract the value of the second expression from the value of the first expression.

Front

What is the process for simplifying an algebraic expression?

Back

To simplify an algebraic expression, combine like terms and perform any arithmetic operations.

Front

What is the role of variables in algebraic expressions?

Back

Variables represent unknown values and can change, allowing for the expression to represent a range of possible values.

Front

How do you determine the value of an expression at specific points?

Back

Substitute the specific values for the variables into the expression and calculate the result.

Front

What is the difference between linear and quadratic expressions?

Back

Linear expressions have a degree of 1 and graph as straight lines, while quadratic expressions have a degree of 2 and graph as parabolas.

Front

What is the importance of understanding function behavior in algebra?

Back

Understanding function behavior helps in predicting how changes in input values affect output values.