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Mathematics 15 Online
OpenStudy (anonymous):

The vertex is (1, 4) and the sign of a is -2 How do I find the range?

OpenStudy (anonymous):

are u talking about a parabola?

OpenStudy (anonymous):

no the lines are linear

OpenStudy (anonymous):

so what exactly is the vertex you're referring to?

OpenStudy (anonymous):

Sorry I know that I sound stupid right now. lol The vertex is a graph I had to draw. The graph was y = -2 Ix - 1I + 4

OpenStudy (anonymous):

no you don't sound that way... math is so broad that vertex could mean a lot of things... i'm just trying to clarify the question... and good thing i did because i thought the question was referring to a parabola... :)

OpenStudy (anonymous):

thankyou :P

OpenStudy (anonymous):

so the graph is an absolute value function... y = -2|x-1| + 4

OpenStudy (anonymous):

because of the -2, the vertex will be HIGHEST point in the graph....

OpenStudy (anonymous):

HINT: the highest value for y is 4...

OpenStudy (anonymous):

So the range would be all real numbers between -2 and 4?

OpenStudy (anonymous):

no... the range is: all real numbers less than or equal to 4

OpenStudy (anonymous):

I get it! :D Thankyou!

OpenStudy (anonymous):

yw...:)

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