6.1 Given: $g(x) = 3^x$
6.1.1 Write down the equation of $g^{-1}$ in the form $y = ...$
6.1.2 Point $P(6 ; 11)$ lies on $h(x) = 3^{x - 4} + 2$ - NSC Mathematics - Question 6 - 2021 - Paper 1
Question 6
6.1 Given: $g(x) = 3^x$
6.1.1 Write down the equation of $g^{-1}$ in the form $y = ...$
6.1.2 Point $P(6 ; 11)$ lies on $h(x) = 3^{x - 4} + 2$. The graph of $h... show full transcript
Worked Solution & Example Answer:6.1 Given: $g(x) = 3^x$
6.1.1 Write down the equation of $g^{-1}$ in the form $y = ...$
6.1.2 Point $P(6 ; 11)$ lies on $h(x) = 3^{x - 4} + 2$ - NSC Mathematics - Question 6 - 2021 - Paper 1
Step 1
Write down the equation of $g^{-1}$ in the form $y = ...$
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
To find the inverse of the function g(x)=3x, we need to swap x and y and solve for y. This gives us the equation: oldsymbol{y = ext{log}_3(x)}.
Step 2
Point $P(6 ; 11)$ lies on $h(x) = 3^{x - 4} + 2$. Write down the coordinates of the image of $P$ on $g$
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The point P(6;11) can be transformed to find the corresponding coordinates on the graph of g.
First, we calculate the translation:
Move 4 units left: New x-coordinate =6−4=2.
Then add 2: New y-coordinate =11−2=9.
Thus, the coordinates of the image of P on g are (2,9).
Step 3
Determine the values of $p$ and $q$
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
We know that the asymptote of the function f(x)=2p∗x+q is y=−16. This asymptote indicates the value of q. Therefore, we have: q=−16.
To find p, substitute the point T(3;16) into the function: 16=2p∗3+q
Substituting for q: 16=2p∗3−16
Now, rearranging gives: 32=2p∗3
Thus, 2^{p} = rac{32}{3}
To find p, we can convert 32 to a power of 2: 32=25
This implies: 2p=25−extlog2(3)
Therefore, pextisapproximately5−extlog2(3)extorp=2.