Thursday

July 24, 2014

July 24, 2014

Posted by **Anonymous** on Saturday, April 30, 2011 at 11:54pm.

I dont know where to begin with this problem??

- Advanced Algebra - typo? -
**MathMate**, Sunday, May 1, 2011 at 7:10am(0,1) means when x=0, y=1.

When x=0,

y = a*0^b = 0 except when b=0, when y is undefined.

So y cannot equal 1 when x=0.

Please check if there is a typo, for example: y=ab^x instead.

If this is the case, then

at (0,1),

1=ab^0=a*1=a

so y=b^x

at (-3,1/27)

1/27 = b^(-3)

27 = b^3;

3^3=b^3

b=3

- Advanced Algebra -
**Anonymous**, Sunday, May 1, 2011 at 10:37amSo what do i put as the answer? is 3 the esponential function then?

- Advanced Algebra -
**MathMate**, Sunday, May 1, 2011 at 11:35am"Please check if there is a typo,..."

When you see what the question actually asks, then you can decide which way to go.

Especially in exams, you need to double-check what you've copied the question correctly before you start.

- Advanced Algebra -
**Kenya**, Sunday, May 1, 2011 at 12:25pmIm sorry yes there was a typo, you correctly fixed it. the b should be an x so it should look like this.

y=ab^x

- Advanced Algebra -
**MathMate**, Sunday, May 1, 2011 at 1:39pmSo the second solution would be appropriate. BUT... do make sure you understand how the solution was obtained, promise?

- Advanced Algebra -
**Anonymous**, Sunday, May 1, 2011 at 2:12pmI do! thank you so much!!

- Advanced Algebra :) -
**MathMate**, Sunday, May 1, 2011 at 2:54pmYou're welcome!

**Related Questions**

math - find the exponential function of the form y=ab^x whose graph passes ...

Algebra II - Use the equation of the exponential function whose graph passes ...

Algebra II - Use the equation of the exponential function whose graph passes ...

alg 2 - Write an exponential function whose graph passes through the given ...

Algebra - Find a power function of the form y=ax^b whose graph passes throught ...

math - Find the exponential function f(x)=Ca^x whose graph goes through the ...

math - Write a function of the form Y=ax^2+c whose graph passes through the two ...

Math - 1. Write a quadratic function in intercept form whose graph has the given...

alg 2 - write an exponential function whose graph passes throught the given ...

algebra - I don't understand how to do this problem. Please help! Find an ...