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edancer98

  • 3 years ago

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

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  1. dpaInc
    • 3 years ago
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    are u talking about a parabola?

  2. edancer98
    • 3 years ago
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    no the lines are linear

  3. dpaInc
    • 3 years ago
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    so what exactly is the vertex you're referring to?

  4. edancer98
    • 3 years ago
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    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

  5. dpaInc
    • 3 years ago
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    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... :)

  6. edancer98
    • 3 years ago
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    thankyou :P

  7. dpaInc
    • 3 years ago
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    so the graph is an absolute value function... y = -2|x-1| + 4

  8. dpaInc
    • 3 years ago
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    because of the -2, the vertex will be HIGHEST point in the graph....

  9. dpaInc
    • 3 years ago
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    HINT: the highest value for y is 4...

  10. edancer98
    • 3 years ago
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    So the range would be all real numbers between -2 and 4?

  11. dpaInc
    • 3 years ago
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    no... the range is: all real numbers less than or equal to 4

  12. edancer98
    • 3 years ago
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    I get it! :D Thankyou!

  13. dpaInc
    • 3 years ago
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    yw...:)

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