Respuesta :
Answer:
g(x) = [tex]x^2[/tex] - 3
Step-by-step explanation:
Looking at the red dotted line, we see that it looks the exact same as the blue graph except that it is a few units lower.
Since the graph of g is moved vertically (down 3 units) from f, we know that this is a vertical transformation. So, we write the change to the entire function: g(x) = f(x) - 3
Now, what is f(x)? The graph of the generic quadratic [tex]x^2[/tex] is f(x). This is a graph that I highly recommend you memorize as it will definitely come in handy later on.
So, g(x) = f(x) - 3 = [tex]x^2[/tex] - 3.
We can check by plugging in the point (2, 1) that is on the graph of g and see if it works:
1 =? 2^2 - 3
1 =? 4 - 3
1 = 1
This works, so we know we're right.
Hope this helps!
Answer:
g(x) = x^2 - 3.
Step-by-step explanation:
f(x) = x^2 because it goes through the origin and we can check the points (-1,1) and (1, 1) and (-2 4) and (2,4) which the curve passes through. They all satisfy f(x) = x^2. This graph is worth committing to memory. Note that it is symmetrical about the y-axis.
g(x) is the function f translated down 3 units so:
g(x) = x^2 - 3.