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The steps to transform an exponential function y = 3x into different forms by applying various transformations such as reflection, expansion, and translation. It also includes the graph of each transformed function with their domains, ranges, y-intercepts, and asymptotes.
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Typology: Exercises
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Write the equation of the exponential function y 3 x after it has undergone each of the following transformations: Transformation Equation Reflection in the y - axis Vertical expansion by 2, and a reflection in the x-axis Translation 3 units up Translation 2 units right Using the graph of y 3 x , sketch the graph of each of the following. Give the domain, range, equation of the asymptote and the y - intercept of the transformed function.
x y Domain Range
2 3 x y Domain Range x y x y
x y Domain Range y - intercept Asymptote
1 3 x y Domain Range y - intercept Asymptote
x y Domain Range
x y Domain Range x y x y x y x y
Some general observations Stretching an exponential graph vertically can also be viewed as translating the graph horizontally. Stretching an exponential graph horizontally can also be viewed as changing the base of the exponential function. This means that an exponential function can be rewritten with any positive base.
x t y y a can be used to model situations where exponential growth or decay occurs. In this function, a represents the growth ( a 1 ) or decay ( 0 a 1 ) factor, y is the future (or past) amount, and y 0 is the initial or original amount (the amount at time 0). t is the amount of time it takes for 1 growth (or decay) period of factor a Write an exponential function that could be used to represent each of the following