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Flauer [41]
4 years ago
14

What point would you have when (-7, 3) is reflected over the line y=x?

Mathematics
2 answers:
chubhunter [2.5K]4 years ago
7 0
I believe it’s C.
The line y=x looks like a even, diagonal line going through (0, 0) on a graph. If you have (-7,3) , your in the first quadrant (in the upper left square of the graph). If you reflect it diagonally, the digits themselves would remain that same, but the value would flip (if it’s positive, it’ll become negative, if it’s negative, it’ll become positive). So if we do that with (-7, 3), it becomes (7, -3).
Solution: (7, -3)
Mekhanik [1.2K]4 years ago
4 0

Answer:

I believe its A.

Step-by-step explanation:

It usually the same numbers but backwards sometimes it just a positive or a negative different.

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Answer:

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Step-by-step explanation:

Consider A represent the balance at time t.

A(0)=$ 7864.

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Rate payment = $k

The balance rate increases by interest (product of interest rate and current balance) and payment rate.

\frac{dB}{dt} = rB-k

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Here p(t)= the coefficient of B =-r

The integrating factor =e^{\int p(t) dt

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Multiplying the integrating factor the both sides of equation (1)

e^{-rt}\frac{dB}{dt} -e^{-rt}rB=-ke^{-rt}

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Integrating both sides

\Rightarrow \int e^{-rt}dB -\int e^{-rt}rBdt=\int-ke^{-rt}dt

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B(t)=\frac{k}{r}-( \frac{k}{r}-7864)e^{rt}

To determine the payment rate, we have to put the value of B(3), r and t in the general solution.

Here B(3)=0, r=0.13 and t=3

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Therefore rate of payment = $ 3145.72

Therefore the rate of interest = ${(3145.72×3)-7864}

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