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Susan9419

  • 3 years ago

Match the correct equation with the graph. y = -3x + 4 y = 5/2x + 5 y = -2/5x + 2 y = -3/2x + 2 x = 4

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  1. Susan9419
    • 3 years ago
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  2. gezimbasha
    • 3 years ago
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    Do you know of the y-intercept concept?

  3. Susan9419
    • 3 years ago
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    no i do not.........

  4. gezimbasha
    • 3 years ago
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    It means whenever the graph touches the y-axis. Look at the graph you have provided and tell me where does your graph touch (intercept) the y-axis.

  5. Susan9419
    • 3 years ago
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    it touches at 5

  6. gezimbasha
    • 3 years ago
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    Good. So which of the options in the question say that the equation touches at 5?

  7. Susan9419
    • 3 years ago
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    id say this one right?y = -2/5x + 2

  8. gezimbasha
    • 3 years ago
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    Ok, you're close but listen. Whenever you see an equation of this form. y = mx + b Where m=(-2/5) and b = 2. You know that b is always the y-intercept. Now check them again and tell me. What do you think? Since b=2 here, it means that the graph touches at 2.

  9. Susan9419
    • 3 years ago
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    so it would be this right? y = 5/2x + 5

  10. gezimbasha
    • 3 years ago
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    Yes it would. Good job!

  11. Susan9419
    • 3 years ago
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    thanks ;D

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