What is the value of the function y=18x−13 when x=−4 ?(1 point)Responses−12.5negative 12.5−15negative 15−13.5negative 13.5−16negative 16

Question

What is the value of the function  y=18x−13  when  x=−4 ?(1 point)Responses−12.5negative 12.5−15negative 15−13.5negative 13.5−16negative 16

GPT-4o mini · Answer

To find the value of the function $ y = 18x - 13 $ when $ x = -4 $, we substitute $ -4 $ into the equation: $$ y = 18(-4) - 13 $$ Calculating this step-by-step: 1. Calculate $ 18 \times -4 $: $$ 18 \times -4 = -72 $$ 2. Now substitute this value back into the equation: $$ y = -72 - 13 $$ 3. Combine the values: $$ y = -72 - 13 = -85 $$ Thus, the value of the function when $ x = -4 $ is $ -85 $. However, if you are looking through the provided options, it appears that none of the provided choices include $ -85 $. It’s possible that there may have been an error in the options listed. Please double-check the question or options for accuracy.