Question

graphing linear equations
vectored instruction
equation:
y = 9 - x
identify the
y - coordinate.
(8, ?)
assume this is a
point on the graph
of y = 9 - x

Explanation:

Step1: Substitute x = 8 into the equation

We have the equation \( y = 9 - x \). Substitute \( x = 8 \) into it.
\( y = 9 - 8 \)

Step2: Calculate the value of y

Simplify the right - hand side of the equation: \( 9 - 8=1 \)

Answer:

1