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nasty-shy [4]
2 years ago
8

I need help with this ASAP plz!!!!! Can you explain so I can understand it better?

Mathematics
2 answers:
Rufina [12.5K]2 years ago
6 0

Answer

Step-by-step explanation:

For exercises one- three, your slopes are m=, so thinking of the slope intercept form y=mx+b. Plug in the (x,y) coordinates into the equation

for example question 1:

1=4(3)+b

or for question 2:

7=-3(2)+b

For exercises 4 and 5, simply just find the y intercept by seeing where on the why axis the line is one a certain point. and to find the slope do the equation

y2-y1/x2-x1

for example number 4:

-1-2/4-2 and your slope would equal - 3/2

so your equation would be

y= -3/2+5

hope this helps ;)

SpyIntel [72]2 years ago
5 0
-3/2+5 is the answer
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Step-by-step explanation:

I solved this using initial conditions and calculus, so I hope that's what you are doing in math.  It's actually NOT calculus, just a concept that is taught in calculus.

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With those 2 equations, we have 2 unknowns, the C (initial value) and the k (the constant). We know that the initial value (or starting temp) for both conditions is the same, so we solve for C in one equation, sub it into the other equation and solve for k.  If

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Since that value of C is the same as the value of C in the other equation, we sub it in:

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Divide both sides by 65 and use the rules of exponents again to get

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Do the log thing on your calculator to get

.2682639866 = 5k and divide both sides by 5 to find k:

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Now that we have k, we sub THAT value in to one of the original equations to find C:

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65=Ce^{.536527973}

Raise e to that power on your calculator to get

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C = 38.01038064

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y=38.01038064e^{1.234014338}

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Please help .........
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Try socratic to answer that, it’s helped me
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