Question

graphing linear equations
vectored instruction
equation:
y = 3x+1
identify the
y-coordinate.
(6, ?)
assume this is a
point on the graph
of y = 3x+1

Explanation:

Step1: Substitute x = 6 into the equation

We have the linear equation \( y = 3x + 1 \). To find the y - coordinate when \( x = 6 \), we substitute \( x = 6 \) into the equation. So we get \( y=3\times6 + 1 \).

Step2: Calculate the value of y

First, calculate \( 3\times6=18 \), then add 1 to it. So \( y = 18+1=19 \).

Answer:

19