1 answer

How do you graph the function #f(x) = (x + 2)^2#?

Question:

How do you graph the function #f(x) = (x + 2)^2#?

Answers

Refer the explanation section

Explanation:

Given -

y = #(x +2)^2#
y = #x^2 + 4x + 4#

Find its vertex -

x = #(-b)/(2a)= (-(4))/(2 xx 1)#= - 2

Take a few values on either side of x = -2
plot the points.
Join them with a smooth curve.
x : y
-5 : 9
-4 : 4
-3 : 1
-2 : 0
-1 : 1
0 : 4
1 : 9
graph{x^2+4x+4 [-10, 10, -5, 5]}

.

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