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iloveboys

Can someone please help me..?? Consider the equation 3x + 5y = 45. Part 1: On your own paper, graph this equation using the slope-intercept method. In the space provided, explain, in words, each step of the procedure you used. Make sure to use complete sentences and correct grammar. Part 2: On your own paper, graph this equation using the intercepts method. In the space provided, explain, in words, each step of the procedure you used. Make sure to use complete sentences and correct grammar.

  • 2 years ago
  • 2 years ago

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  1. iloveboys
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    liliakarina!

    • 2 years ago
  2. iloveboys
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    please help.... !!!!!!!!!!

    • 2 years ago
  3. neverforgetvivistee
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    alright, so the slope-intercept form is y=mx+b let's try to get 3x + 5y = 45 to look like that, we can do that by subtracting 3x from both sides 5y = 45 - 3x but we can't have anything in front of the y, so to get rid of it we can divide everything by 5 y = 9 - 3/5x just rearrange it y= -3/5x + 9 ok, so the one without the x is your y-intercept (in this case is 9). First thing you do is graph the y intercept. Look for 9 on the y axis. |dw:1323572454380:dw| now you're slope is -3/5. Let's go 3 down, and 5 to the right. (we go 3 down because the 3 is negative. You only count one number as negative when your fraction is negative. You could even do the 3 positive and the 5 negative.)|dw:1323572523105:dw|

    • 2 years ago
  4. neverforgetvivistee
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    from 9, you do 3 down and 5 to the right

    • 2 years ago
  5. iloveboys
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    is that it for both part 1 and 2??

    • 2 years ago
  6. neverforgetvivistee
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    yes

    • 2 years ago
  7. neverforgetvivistee
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    did i mess up?

    • 2 years ago
  8. iloveboys
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    no... no. thanku so much... also think u cld do this? Consider the line that passes through the point (3, -6) and has a slope of 4. Part 1: Write the equation of this line using point-slope form. Part 2: Using your equation from part 1, rewrite this equation in slope-intercept form. Make sure to show all of your work. Part 3: Using your equation from part 2, rewrite this equation in standard form. Make sure to show all of your work.

    • 2 years ago
  9. hot_cutie
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    why u like her but not me?

    • 2 years ago
  10. neverforgetvivistee
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    y – y1 = m(x – x1)

    • 2 years ago
  11. iloveboys
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    ? what is going on? please no fighting on hear!

    • 2 years ago
  12. hot_cutie
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    lol like cookie dough?

    • 2 years ago
  13. iloveboys
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    2......??

    • 2 years ago
  14. neverforgetvivistee
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    ok, so 3,-6 3 is your x and -6 is your y let's plug that into the formula y – y1 = m(x – x1) y - - 6 = 4(x-3) Now let's try to put this in y=mx+b form, use the distributive property with 4(x-3) and two negatives make a potisitive in y - - 6 y + 6 = 4x - 12 subtract 6 from both sides y = 4x - 2 ok cool, now we have it in slope intercept form remember to always graph your y-intercpet first (which is -2) on the y-axis |dw:1323573083990:dw| from that point, go 4 up, 1 right|dw:1323573115822:dw|

    • 2 years ago
  15. neverforgetvivistee
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    sorry i took a long time i almost forgot how to do it

    • 2 years ago
  16. iloveboys
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    its alright and then u got to do part three if u will please!

    • 2 years ago
  17. neverforgetvivistee
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    ok so standard form is Ax + By = C we have y = 4x - 2 we can get into standard form by subtracting 4x from both sides -4x + y = -2 but we can't have a negative x, we can get rid of the negative by multiplying everything by -1 4x-y=2

    • 2 years ago
  18. iloveboys
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    thank u so much!

    • 2 years ago
  19. neverforgetvivistee
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    np :)

    • 2 years ago
  20. bob06
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    any other questions?

    • 2 years ago
  21. iloveboys
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    not atm thanks everyone!

    • 2 years ago
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