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Consider the function

\( f(x) = \begin{cases} ax^2 & \text{if } x \geq a,\\ ax +2a& \text{if } x

 

where a is some number.

What is the largest value of a such that the graph of y= f(x) intersects every horizontal line at least once?

 Jan 5, 2021
 #1
avatar+188 
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I can't understand your latex but try finding a value of a so that the range of f(x) is \((-∞,∞)\)

:D

 Jan 6, 2021
 #2
avatar+289 
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Go to this link to find the answer 

https://web2.0calc.com/questions/help_51190 

 Jan 6, 2021

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