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April 19, 2014

April 19, 2014

Posted by **Jona** on Wednesday, November 7, 2007 at 9:36pm.

f(x) = 2 , x=<-1

ax + b , -1<x<3

-2 , x>=3

could someone help me with this question please? thank you.

- Math - Continuity -
**drwls**, Wednesday, November 7, 2007 at 11:47pmFor continuity at x=-1, ax + b must equal 2 at x=-1

Therefore -a + b = 2

For continuity at x=3, ax+b must equal -2 there.

Therefore 3a + b = -2

Solve those two equations in two unknowns for a and b.

4a = -4

a = -1

b = 2 + a = ?

- Math - Continuity -
**Jona**, Thursday, November 8, 2007 at 7:57amTHANK YOU!!

- Math - Continuity -

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