Given function: f(x) = (3x+5)/7

y = f(x) so it's the same as y = (3x+5)/7

Swap every copy of x and y to get x = (3y+5)/7

Solve for y to get....
x = (3y+5)/7
7x = 7*(3y+5)/7
7x = 3y+5
7x-5 = 3y+5-5
7x-5 = 3y
3y = 7x-5
3y/3 = (7x-5)/3
y = (7x-5)/3

So the inverse function is f^(-1)(x) = (7x-5)/3

Answer is choice A

5 0

3 years ago

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What is the lowest value of the range of the function shown on the graph?

insens350 [35]

The complete question in the attached figure

we know that
the range is the y-value of the function
so
the lowest y-value on this graph is y = -2.

the answer is
y=-2

5 0

3 years ago

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Help pleaseee! Relationships within triangles posttest

maksim [4K]

It’s 88 cause if you see in the other side is 44+44 and what does That Equal =88

4 0

3 years ago

P = $14,300<br> r = 7 %<br> t = 4

frozen [14]

$A=P\left(1+\dfrac{t}{100}\right)^t\\\\P=\$14,300\\r=7\%\\t=4\\\\A=\$14,300\left(1+\dfrac{7}{100}\right)^4=\$14,300(1+0.07)^4\$14,300\cdot1.07^4\approx18,744.38$

5 0

3 years ago