208k views
5 votes
Need help writing a quadratic equation from a function given the graph, screenshot posted of the question

Need help writing a quadratic equation from a function given the graph, screenshot-example-1
User Steadyfish
by
8.5k points

1 Answer

4 votes

Hello from MrBillDoesMath!

Answer: g(x) = (x+3) ^2 + 3

Discussion:

First, the graph looks like the parabola y = x^2 BUT its smallest y-value is +3. That suggests the equation g(x) = x^2 + 3 BUT the parabola is shifted 3 units to the left. This suggest we take our last guess (x^2 +3) and shift it 3 units to the left, giving g(x) = (x+3)^2 + 3

Note that g(-3) = (-3 +3)^2 + 3 = 3




Regards, MrB

User Ankit Shukla
by
8.5k points