9:53 PM Thu Feb 20 Emilio Mejia Felici... R. 4 Evaluate linear expressions Video 08:11 Evaluate the expression for \( q=-1.6 \). Write your answer as a decimal or whole number. \[ 2 q= \] \( \square \) Submit Not ready yet?

To evaluate the expression \( 2q \) when \( q = -1.6 \), you simply substitute -1.6 into the expression. So, you calculate \( 2 \times (-1.6) \) which equals -3.2. This means the final answer is \( -3.2 \). Linear expressions like this one are not just numbers; they represent relationships! For example, they can model real-world situations, such as predicting costs based on quantities or calculating profits at different sales levels. Understanding how to evaluate such expressions allows you to tackle various everyday problems, from budgeting to project planning!