Question

which eponentioal funtion has a y- intercept of 9, a horizonal asmtote of y=5 and contains the point (1,17) ? a f(x)-4*3^x+5 B f(x)=3*4^x+5 C f(x)=5*4^x+3 D f(x)=3*5^x+4

Answer 1

@hartnn

Answer 2

y intercept = 9
so if you plug in x=0, you should get y = 9 in your equation.

for which option is this true?

Answer 3

???

Answer 4

consider last option,
3*5^x +4
if I put x= 0,
i get
3*5^0 +4 = 3*1 + 4 = 7
and not 9.
so last option cannot be the answer.

Answer 5

can you similarly check other options?

Answer 6

no

Answer 7

wait yea c ??

Answer 8

is it c

Answer 9

nope, 5+3= 8

Answer 10

neither B 3+5 = 8

Answer 11

so only A remains :)