Modulus function

[buoyant jetty]

can someone help with part c

[gleaming mountain]

haha Im literally doing this q rn

doing the past paper

idk how to write it properly in set notation though

[lavish horizon]

what did you get for P?

[steady kernel]

what paper is that

[vestal walrus]

Is that right?

[buoyant jetty]

yh thats right

how u get y as -5 im fully bugging i think + could you explain how you did part c

[buoyant jetty]

some pmt one

[vestal walrus]

u sub in

-4

into any one of your mod eqs

these qs are bare common so after doing one its easily to clock on what to do

basically the minimum point P is the smallest point in which the line y=ax can intersect in order for y=ax and the mod graph to have sols

so u sub in your x and y values to solve for a

and for the other bound, the gradient of the graph on the positive side is 2

and for y=ax to intersect anything with a gradient of 2 it must have a gradient more than 2 to make a steeper line