A -intercept is where a graph meets the vertical axis. That crossing has input , so read its height and translate both coordinates using the axis labels. An intercept gives the output at one input, not how much the output changes each day.
Hints
- Hint 1
The -intercept is on the vertical axis, where the horizontal coordinate is . Find where the curve meets that axis. Which tick mark gives its height?
- Hint 2
Since measures days since launch, means the day the website launched. The output measures daily visits. What does the point say about visits on that day?
Step-by-step
Read the starting value from the graph
Step 1Locate the y-intercept
No Desmos needed. The graph is already shown. The -intercept is where the curve meets the vertical axis, so its -coordinate is .
- Step 2
Read the crossing
The curve meets that axis at the tick, so the intercept is . The coordinates give the horizontal position first and the vertical position second.
- Step 3
Interpret the point
Because counts days since launch, means the launch day. The output means an estimated daily visits, not an increase of visits per day. So the website had an estimated daily visits on the day it launched. Choice A.