# "State the point you know lies on each of the following functions" - Help Please

• Jan 28th 2013, 07:47 AM
opusknecht
"State the point you know lies on each of the following functions" - Help Please
My girlfriend is taking college algebra and asked me about these questions (see attachments). I am totally drawing a blank, the book has no examples, she has no notes and the teacher hasn't gotten back to us. I know it's gotta be easy, but it's eluding me.

If you have any time at all and want to help a struggling college student, we would really appreciate it. =)
• Jan 28th 2013, 08:24 AM
Plato
Re: "State the point you know lies on each of the following functions" - Help Please
Quote:

Originally Posted by opusknecht
My girlfriend is taking college algebra and asked me about these questions (see attachments). I am totally drawing a blank, the book has no examples, she has no notes and the teacher hasn't gotten back to us. I know it's gotta be easy, but it's eluding me.

If you have any time at all and want to help a struggling college student, we would really appreciate it. =)

Frankly, I am confused as to what you are asking. You have the correct answers.

From the given \$\displaystyle g(4)=-2\$.
Let's do part b). \$\displaystyle 1.6t=4\$ so \$\displaystyle t=2.5\$.
Thus \$\displaystyle g(1.6(2.5))+7.68=5.68\$ so \$\displaystyle (2.5,5.68)\$ is on that curve.
• Jan 28th 2013, 08:48 AM
opusknecht
Re: "State the point you know lies on each of the following functions" - Help Please
Those answers were from the study guide. We didn't know the process of *getting* the answer for new questions that will be on the test. From your example I figured out the process. Thanks!