Question

when x is 1, what value of y makes the equation true?
y = -3x + 2.5

Explanation:

Step1: Substitute x = 1 into the equation

We have the equation \( y = -3x + 2.5 \). Substitute \( x = 1 \) into it, so we get \( y = -3\times1 + 2.5 \).

Step2: Calculate the value of y

First, calculate \( -3\times1 = -3 \), then add 2.5 to it: \( y = -3 + 2.5 = -0.5 \).

Answer:

\(-0.5\)