Im having trouble with this and i have to get it done by today.?

It's early in the evening, and you're standing in your back yard waiting for the stars to come out. Before long, you can see two stars in the sky. The equation of the line between you and Venus (which is actually a planet, but looks like a star) is y = 10x + 30. The equation of the line between you and Sirius is y = 9x + 40.

Which star is higher in the sky?  You must include an explanation of why you think your answer is correct.

4 Answers

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  • 1 month ago

    Venus is higher.  For the first few X ordinals, Sirius appears higher (For X values of 1 through 9, The Y value for Sirius is higher...)  But, at 10, they two Y values are equal, and after that, the values for Y for Venus are greater than those of Sirius. 

    First column is "X", 

    Second column is the 10X + 30 equation, 

    Third column is the 9X + 40 equation: 

    1 40 492 50 583 60 674 70 765 80 856 90 947 100 1038 110 1129 120 12110 130 13020 230 22030 330 31040 430 40050 530 49060 630 58070 730 67080 830 76090 930 850100 1030 940

  • 1 month ago

    Where's the x axis? Your teacher is a moron.

  • 1 month ago

    Well, drop Venus from the question. That should clear things up.

    Working the math disregarding planet/star, Venus is within the ecliptic Sirius is not, that makes Sirius higher.

    You can search up the declination of each, or any object and see how this works.

    More food for thought, Venus is part of our solar system in orbit around the sun.

    Sirius is a distant star in the constellation Canis Major.

  • Lujk
    Lv 4
    1 month ago

    sirius because venus is a planet. dumbass quesion

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