The graphs below have the same shape. What is the equation of the blue
graph?
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Answer:
g(x) = (x + 3)² + 1
Step-by-step explanation:
Given the function f(x) then f(x + a) represents a horizontal translation of f(x)
• If a > 0 then a shift to the left of a units
• If a < 0 then a shift to the right of a units
The vertex of f(x) is at (0, 0)
While the x- coordinate of the vertex of g(x) is at - 3, that is a shift to the left of 3 units, thus
g(x) = (x + 3)² + c
Given f(x) then f(x) + c represents a vertical translation of f(x)
• If c > 0 then a shift up of c units
• If c < 0 then a shift down of c units
Here g(x) is 1 unit above the x- axis, thus a shift up of 1 unit
Hence
g(x) = (x + 3)² + 1
Answer:
Blue graph is
[tex]y-1= (x+3)^2[/tex]
Step-by-step explanation:
Given are two graphs one red and one blue.
Blue is got by some transformations on f(x)
Parent function [tex]f(x) = x^2[/tex]
This is the red graph
Comparing blue graph with this, we find that vertex is shifted to (-3,1)
But as far size is concerned both graphs have the same size hence no dilation or shrink. Only shifted vertically and horizontally.
vertical shift is 1 unit up and horizontal shift is 3 units to the left
Hence blue graph would be
[tex]y-1=(x+3)^2[/tex]