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3 years ago

Write an equation in slope intercept form of the line containing the points (-2,5) and (9,-6)

1 answer:

4 0

(-2,5)(9,-6)
slope(m) = (-6-5) / (9 - (-2) = -11/11 = -1

y = mx + b
slope(m) = -1
(-2,5)...x = -2 and y = 5
now we sub and solve for b, the y int
5 = -1(-2) + b
5 = 2 + b
5 - 2 = b
3 = b

so ur equation in slope intercept form is : y = -x + 3

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3 years ago

What is the inverse of f(x)=4x+3 ?

GaryK [48]

<h2>Steps:</h2>

Here are the steps to convert an equation to its inverse:

Change f(x) to y
Switch the positions of x and y
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Firstly, do the first two steps:

$x=4y+3$

Next, let's solve for y. Subtract 3 on both sides:

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Next, divide both sides by 4:

$\frac{1}{4}x-\frac{3}{4}=y$

<h2>Answer:</h2>

Finally, change y to f^-1(x) and your final answer will be:

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dem82 [27]

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