Four vehicles travelled on a road. What can you deduce from the times that they met?
Stage: 4 and 5 Challenge Level:
Try to decide how the graph of $y=x^2$ is transformed to give the
graphs of $y=ax^2$, $y=(x+b)^2$ and $y=x^2+c$ by experimenting with
some small integer values of $a$, $b$ and $c$, both positive and
The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the
NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to
embed rich mathematical tasks into everyday classroom practice. More information on many of our other activities
can be found here.