2 years ago

write the linear equation in slope-intercept form passing through the point with the given slope (1,3) and (-3,-5)

Mathematics

1 answer:

igor_vitrenko [27]2 years ago

3 0

Answer:

y = 2x + 1

Step-by-step explanation:

本题已由中国数学会官方解答（现有会员：3人）

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If f(x) and it’s inverse function, f^-1(x), are, both plotted on the same coordinate plane, what is their point of intersection

Korolek [52]

Answer:

Step-by-step explanation:

Hello,

there is not always an intersection point

let's take the example of on the appropriate domain

$f(x)=e^x \ \ \ f^{-1}(x)=ln(x)$

there is no intersection point

if there is one it means that the point (x,f(x)) and the point (x, $f^{-1}(x)$ ) is the same so that have to solve

$f(x)=f^{-1}(x)$

for instance if we take

$f(x)=x^2 \ \ \ f^{-1}(x)=\sqrt{x} \ \ \ for \ x >= 0$

intersection point are for x >= 0

$x^2=\sqrt{x} x^4=xx^3=1 \ or \ x=0 x = 1 \ or \ x=0$

hope this helps

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3 years ago

A dining set is priced at $785. If the sales tax is 9 percent, what is the cost to purchase the dining set? Round to the nearest

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Answer:

$855.65

Step-by-step explanation:

Multiply 785 by 0.09 to get the sales tax amount which is 70.65.

Add the sales tax amount to the price of the dining set to get cost after tax.

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2 years ago

Alex drew the triangles shown. What correctly describes the triangles

KATRIN_1 [288]

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Step-by-step explanation:

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