Posted by Nik on .
For what values of a and b that make the function f continuous everywhere.
f(x)= {x−2x2−4 if x<2
ax2−bx−18 if 2< or =x<3
10x−a+b if x> or =3

calculus 
bobpursley,
look at 2
x^22x4=ax^2bx18
444=4a2b18
2ab=18 check that.
at x=3
ax^2bx18=10xa+b
9a3b18=30a+b
10a4b=48
Now you have two equations, two unknowns, solve.