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Kisachek [45]
3 years ago
10

Talib is trying to find the inverse of the function to the right. His work appears beneath it. Is his work correct? Explain your

answer.

Mathematics
2 answers:
swat323 years ago
7 0

His work is not correct. You first must switch x and y and then solve for y.

according to GdGenuity

ololo11 [35]3 years ago
3 0
No, they forgot to switch variable labels after solving for the independent variable...

y=-8x+4

y-4=-8x

(y-4)/-8=x 

Now that you have solved for the independent variable x, you switch the variable labels...

y=(x-4)/-8

f^-1(x)=(x-4)/-8     which should really be rewritten as:

f^-1(x)=(4-x)/8  :P
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Line m passes through the points (5, 1) and (8, 6) while line n passes through the points (-4, 3) and (-1, 8). Which statement a
Anna [14]
Find the equations of the lines...

First find the slope...(y2-y1)/(x2-x1)=m

m=(6-1)/(8-5)=5/3 and it passes through (5,1) so

y=mx+b becomes:

y=5x/3+b and using (5,1)

1=5(5)/3+b

1=25/3+b

3/3-25/3=b

b=-22/3 so 

y1=(5x-22)/3

.... now y2...

m=(8-3)/(-1--4)=5/3 (note it has the same slope as y1...

y=5x/3+b and using the point (-1,8)

8=5(-1)/3+b

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24/3+5/3=b

b=29/3, now note that the y-intercept is different...

y2=(5x+29)/3

Since these lines have the same slope but different y-intercepts, they are parallel to each other. (and will never intersect.)
8 0
3 years ago
The general form of the equation of a circle is 7x2 + 7y2 − 28x + 42y − 35 = 0. The equation of this circle in standard form is
marta [7]
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x² + y² - 4 x + 6 y - 5 = 0
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The equation in the standard form is:
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7 0
3 years ago
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2 years ago
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anastassius [24]
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4 0
2 years ago
Evaluate each expression. Click on undefined as needed
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4 0
3 years ago
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