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OpenStudy (imsleeziboii):
@4everaddicted2anime
OpenStudy (lakota1999):
what is it
OpenStudy (imsleeziboii):
Find three solutions of the equation.
y=-2x
OpenStudy (lakota1999):
im not good at that knd of math sorry
OpenStudy (4everaddicted2anime):
Since there is no b value, the y intercept is zero
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OpenStudy (imsleeziboii):
Its okay lakota thanks
OpenStudy (imsleeziboii):
okay so the solutions have to equal zero?
OpenStudy (lakota1999):
fan though?
OpenStudy (imsleeziboii):
a.
(0, 0), (3, –8), (–2, 4)
c.
(–2, 4), (1, –2), (0, 0)
b.
(1, –2), (0, 0), (–1, 1)
d.
(–2, 4), (1, –2), (2, –3)
OpenStudy (imsleeziboii):
Gotcha
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OpenStudy (lakota1999):
thx
OpenStudy (4everaddicted2anime):
no. that is just for one of the solutions
OpenStudy (lakota1999):
lol
OpenStudy (imsleeziboii):
Oh my bad
OpenStudy (4everaddicted2anime):
which one do you think is right?
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OpenStudy (imsleeziboii):
Im thinking A?
OpenStudy (lakota1999):
?
OpenStudy (imsleeziboii):
lakota can you fan me
OpenStudy (4everaddicted2anime):
Okay. The equation is y=-2x
Lets plug in some of the coordinates for A. First lets use (0,0)
-2(0) does equal 0, so this one is correct. Now lets check (3,-8)
-2(3) equals -6 and not -8, so we can rule this option out.
OpenStudy (imsleeziboii):
okay so a is wrong
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OpenStudy (imsleeziboii):
how about c?
OpenStudy (lakota1999):
?
OpenStudy (imsleeziboii):
those were my guesses
OpenStudy (4everaddicted2anime):
Lets do the same thing that was done with option A, but now with option C. First lets try (-2,4)
-2(-2) does equal 4, so this one is right. Lets now try (1,-2)
-2(1) does equal -2, so this one is right as well. We have already done the last one (0,0) so this is the answer.
OpenStudy (imsleeziboii):
c is correct?
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OpenStudy (4everaddicted2anime):
yes
OpenStudy (imsleeziboii):
Okay
OpenStudy (imsleeziboii):
Do you mind helping with just one more? im sorry
OpenStudy (4everaddicted2anime):
sure
OpenStudy (imsleeziboii):
sorry ill brb restroom
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OpenStudy (lakota1999):
?
OpenStudy (imsleeziboii):
For the equation , y=-4x-5, tell whether its graph passes through the first quadrant. Explain how you know.
a.
Yes; for x>0 some y-values are positive.
b.
No; for x>0 the y-values are negative.
c.
Yes; for x<0 some y-values are positive.
d.
No; for x<0 the y-values are negative.