Answer:
y=2x+3
Explanation:
When a line is perpendicular to another line, it means that the slope is the opposite reciprocal of the other slope.
We can see that line C has a slope of -1/2, meaning that the opposite reciprocal is 2. This overall means that line D has a slope of 2.
We can also see that line d (from the graph) has a y-intercept of (0,3).
To write this equation:
y=2x+3
Hope this helps! :)