Question

Use the definition of continuity to determine whether f is continuous at a.

f(x) = 5x4 - 9x3 + x - 7a = 7

Answer 1

what grade is this anyway

Answer 2

its a pre cal class

Answer 3

can you help?

Answer 4

f(x)=5x^4-9x^3+x-7a-7??

Answer 5

f(0) = 0 - 4 = -4

lim (x->0, x>0) f(x) = 0^2 + 0 - 4 = -4

f is continuous.

Answer 6

@nthenic_oftime ??

Answer 7

@Roseamora it is told to find continuity at x=a

Answer 8

thats what the proble said

Answer 9

@jango_IN_DTOWN

Answer 10

see every polynomial function is continuous.
can you give me a snapshot of the problem from the book?

Answer 11

Use the definition of continuity to determine whether f is continuous at a.

f(x) = 5x4 - 9x3 + x - 7a = 7
A. Not continuous
B. Continuous
@jango_IN_DTOWN this is the whole problem i am confused

Answer 12

f(x)=5x^4-9x^3+x-7a-7
f(a)= 5a^4-9a^3+a-7a-7=5a^4-9a^3-6a-7= lim x->a f(x)
hence continuous