Piecewise-defined function please help? #f(x)= -3x-4" if "x≤4;" "# #f(x)=-2x+6" if "x >4#

1 Answer

Truncated limes appear in the graph. Please do not slide it.

Explanation:

#x = 4# meets the first line at #y=-16# and the second at #y =-2#

So, #y >= - 16# for the 1st and #<=-2#, for the second. Choose y-range

#[ - 16 - 2 ] #, for the graph.
-graph{(y+3x+4)(y+2x-6)(x-4+0y)=0[-10 18 -16 -2] }