Graph y = square root of x+4
Problem
Solution
Identify the parent function and the transformation. The parent function is
y=√(,x) The expressionx+4 inside the square root indicates a horizontal shift to the left by 4 units.Determine the domain of the function. Since the value inside a square root must be non-negative, we set
x+4≥0 which results inx≥−4 Find the starting point (vertex) of the graph. When
x=−4 y=√(,−4+4)=0 The starting point is(−4,0) Calculate additional points to determine the shape of the curve.
If
x=−3 y=√(,−3+4)=1 Point:(−3,1) If
x=0 y=√(,0+4)=2 Point:(0,2) If
x=5 y=√(,5+4)=3 Point:(5,3)
Plot the points on a coordinate plane and draw a smooth curve starting from
(−4,0) and passing through the calculated points, extending to the right.
Final Answer
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