Question

for the two variable equation y=-2x-1 find the matching y value when x=-1

Answer 1

To find the matching \( y \) value for the equation \( y = -2x - 1 \) when \( x = -1 \), substitute \(-1\) for \( x \):

\[
y = -2(-1) - 1
\]

Now, calculate it step by step:

1. Multiply: \( -2 \times -1 = 2 \)
2. Then, subtract 1: \( 2 - 1 = 1 \)

So, when \( x = -1 \), the matching \( y \) value is

\[
\boxed{1}
\]