- #1
jwxie
- 281
- 0
This is from my old exam
f(x) = for x <1 (x-1)^2
for 1 <= x <= 4 ax+b find a and b so that fx is continuous for all x
for x <4 sqrt (2x+1)
so i guess i start evaluating some limit.
since the ax+b is define everywhere b/w x = 1 and x = 4, i guess i would use the third function f(x) = sqrt(2x+1) for limit goes to 4
f(x) = limit (x goes to 4) sqrt(s2+1) = 3
then i think i would let a = 3 ?
3x+b = ? what is y then?
f(x) = for x <1 (x-1)^2
for 1 <= x <= 4 ax+b find a and b so that fx is continuous for all x
for x <4 sqrt (2x+1)
so i guess i start evaluating some limit.
since the ax+b is define everywhere b/w x = 1 and x = 4, i guess i would use the third function f(x) = sqrt(2x+1) for limit goes to 4
f(x) = limit (x goes to 4) sqrt(s2+1) = 3
then i think i would let a = 3 ?
3x+b = ? what is y then?