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Mathematics 10 Online
OpenStudy (anonymous):

Please help me with this question! I don't understand what they're asking.

OpenStudy (anonymous):

OpenStudy (anonymous):

Answers include... x=-2 x=-1 x=1 x=5

OpenStudy (dtan5457):

The solution is where the 2 equations intercept

OpenStudy (anonymous):

There is two places, though.

Directrix (directrix):

Yes, like the last problem you did. This time you are given the graphs and asked the solutions. That would be the x-values of the points of intersection. Yes, there are two so read both of them off the graph. Let us know what you get.

OpenStudy (dtan5457):

True, but from your answer choices I only see one solution from your choices.

OpenStudy (dtan5457):

Remember: x=any value is a vertical line from that point

OpenStudy (dtan5457):

y=any value is a horizontal line from that point on the y axis

OpenStudy (anonymous):

I get -1.9 and 1.6

OpenStudy (dtan5457):

Hmm, -1.9 looks like -2 to me

OpenStudy (anonymous):

So, the closest answer would be -2.

OpenStudy (dtan5457):

Yep

OpenStudy (anonymous):

I thought so, too. I put it on my graphing calculator and it showed -1.9.

OpenStudy (dtan5457):

x=-1 x=1 x=5 ^^^^ not even close to the intersections

OpenStudy (dtan5457):

-2 would be a pretty good choice

OpenStudy (anonymous):

I submitted x=-2 as the answer and it was correct. Thank you!

OpenStudy (dtan5457):

our pleasure.

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