Free SAT Linear Functions Mock

Let’s boost your SAT Math score in an upward slope with Linear Functions! Take a quick SAT practice test on Linear Functions to level up your skills, tackle tougher problems, and discover your strengths.

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Linear Functions

The mean of a set of 12 positive numbers is a, and the mean of a different set of 13 positive numbers is b. If the mean of all 25 numbers is 10, which of the following is true?

A a + b = 25 B a + b = 250 C 12a + 13b = 25 D 12a + 13b = 250

P=900−15d
In the equation above, P represents the amount of power left, in watts, in a portable battery after d days of use, where 900 represents the total initial power in watts. If the power left in the battery was 600 watts, for how many days was the battery used?

A 20 B 40 C 60 D 80

On July 1,2023, a gym's monthly membership fee was $40. It decreased by $3 on the first day of each month for the next 8 months. Which of the following functions best models the monthly membership fee, in dollars, z months after July 1,2023, where z=1,2,3,4,5,6,7,8?

A f(z) = 40 - 3z B f(z) = 40z - 3 C f(z) = 40 + 3z D f(z) = 3z - 40

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How to solve questions from Linear Functions?

Understand Function Structure

Identify slope and y-intercept by recognizing the form (e.g., y=mx+b) and interpret what each represents in the problem context

Substitute and Evaluate

Plug given values for variables directly into the function to compute outputs or solve for unknowns

Breakdown Word Problems

Define variables, set up the function based on the scenario, and methodically manipulate the equation to find the solution

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Why Linear Functions matter for SAT?

EdisonOS conducted a detailed Bluebook analysis to help tutors design SAT tests mirroring official Bluebook test challenges. Findings show Algebra dominates SAT Math, and Linear Functions share an equal number of questions with other key skills, making it essential for students to include all Algebra topics in their study plan.

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I Need Detailed Analysis

Avoid These Common Mistakes In Linear Functions!

Operation Imbalance

Failing to perform the same operation on both sides leads to incorrect solutions

Distribution Errors

Misapplying the distributive property, especially with negatives or parentheses, causes calculation mistakes

Combining Like-terms

Incorrectly combining terms, particularly with negative signs, results in wrong answers

Fraction Handling

Not converting fractional equations to linear form before solving complicates and confuses the process

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When you take tests with quality questions you can drastically improve your learning curve. Imagine taking tests with questions that are not yet available in the market!

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