Question

This graph shows the distance two cars have traveled along a freeway over a period of several seconds. Car A is traveling 30 meters per second

Which equation from those shown below is thebest choice for describing the distance traveled by car B after x seconds

Answer 1

y = 15x

Explanation:

If A is:

y = 30x

Then the gradient is 30, a higher gradient would be steeper or more vertical;

A lower gradient would be more shallow or more horizontal;

A is steeper than B, therefore the gradient of B must be lower;

If the two options are 15 and 60, the answer will be 15 since it is the one that is less than 30