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iwanttogotostanford

  • one year ago

NEED HELP W/ THIS ACT PREP QUESTION: The curve y=0.005x^2-2x + 200 for 0 less than or equal to x less than or equal to 200 and the line segment from F (0, 200) to G (200, 0) are shown in the standard (x, y) coordinate plane below ( DRAWN BELOW) 1.) What is the y-coordinate for the point on the curve with x-coordinate 20? -160 -162 -164 -166 -168

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  1. iwanttogotostanford
    • one year ago
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    |dw:1443387289473:dw|

  2. iwanttogotostanford
    • one year ago
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    @LynFran @misty1212 @zepdrix @Nnesha please explain, i already know the answer i just need to know the process or how to solve it better later- i will be right back in ten minutes =, please help :-)

  3. Nnesha
    • one year ago
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    substitute x for 20 to find y coordinate

  4. Nnesha
    • one year ago
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    can i ask you a question i'm confused what is `-` is this represent negative sign ?

  5. Nnesha
    • one year ago
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    well i don't think tahts a negative sign anyways replace x with 20 then solve

  6. iwanttogotostanford
    • one year ago
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    @Nnesha no, its just like A, B, C, D

  7. Nnesha
    • one year ago
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    oky cool then just substitute x for 20

  8. iwanttogotostanford
    • one year ago
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    and then whats the second step?

  9. iwanttogotostanford
    • one year ago
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    @Nnesha can i ask one more question pertaining to this same problem?

  10. iwanttogotostanford
    • one year ago
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    @Nnesha

  11. Nnesha
    • one year ago
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    \(\color{blue}{\text{Originally Posted by}}\) @iwanttogotostanford and then whats the second step? \(\color{blue}{\text{End of Quote}}\) that's it replace x with 20 then solve

  12. iwanttogotostanford
    • one year ago
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    i got 162 for the first question and it was right. Can I ask you another?

  13. iwanttogotostanford
    • one year ago
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    @Nnesha

  14. Nnesha
    • one year ago
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    ye post ur questino

  15. Nnesha
    • one year ago
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    question

  16. iwanttogotostanford
    • one year ago
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    the length of this curve is longer than FG. About how many coordinate units long is FG? (this is pertaining to the problem i posted first @Nnesha

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