Question #22d0b
1 Answer
Nov 25, 2017
Explanation:
to find the equation we start with the parabola
we have two information:
-
reflected over the x-axis : this means it's upside down, so we add a negative sign
#y = -x^2# -
vertex at (-1, 4): we can think of this from two approaches:
2.1 by using the vertex form
We can use the vertex form to answer this directly:
2.2 by using the transformation
this means we transformed the original graph by moving up by 4 (so
so :
graph{y = -(x - (-1))^2 +4 [-10, 10, -5.21, 5.21]}
Hope this helps. Have a nice day.