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3 years ago

Find the slope of the line passing through (-2,5) and (9,-7)?

Mathematics

1 answer:

Marat540 [252]3 years ago

8 0

Use the slope formula.
Y2 - Y1 / X2 - X1
(-7 - 5) / (9 - -2)
(-12) / (11)
So answer: slope(m) = -12/11

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What relations are functions

Inessa05 [86]

The requirement is that every element in the domain must be connected to one - and one only - element in the codomain.

A classic visualization consists of two sets, filled with dots. Each dot in the domain must be the start of an arrow, pointing to a dot in the codomain.

So, the two things can't can't happen is that you don't have any arrow starting from a point in the domain, i.e. the function is not defined for that element, or that multiple arrows start from the same points.

But as long as an arrow start from each element in the domain, you have a function. It may happen that two different arrow point to the same element in the codomain - that's ok, the relation is still a function, but it's not injective; or it can happen that some points in the codomain aren't pointed by any arrow - you still have a function, except it's not surjective.

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3 years ago

Use the function to solve the question. What is f(-3) ?

ohaa [14]

Answer:

-3 f

ithink

Step-by-step explanation:

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2 years ago

Read 2 more answers

Jack uses a probability simulator to roll a six-sided number cube 100 times and to flip a coin 100 times. The results of the exp

Mandarinka [93]

The experimental probability is the number of specific outcomes divided by the sample size...

P(6)=27/100 (27%)

P(H)=41/100 (41%)

Not sure, but if you meant rolling a 6 AND getting a head then:

P(6 AND H)=(27/100)(41/100)=1107/10000 (11.07%)

5 0

3 years ago

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Write the point-slope form of the line satisfying the given conditions. Then use the point-slope form of the equation to write

abruzzese [7]

slope = m = 16-10 / 8-5 = 6/3 = 2

y - y1 = m x (x-x1)

y-10 = 2 x (x-5)

y-10 = 2x-10

y = 2x

7 0

2 years ago

How long does a car traveling at 70 mph take to travel 88 miles, in hours

dybincka [34]

So,

Obviously, the car will travel 70 miles in one hour. So after one hour, the car will have traveled 70 miles. That leaves 18 miles.

The time it will take for the car to go another 18 miles will be 18 divided by 70.
$\frac{18}{70}$

Simplify.
$\frac{2*3*3}{2*5*7}$
$\frac{3*3}{5*7}$
$\frac{9}{35}$

Divide.
≈ 0.25714

So a car traveling at 70 mph will take approximately 1.25714 hours or 1.26 hours to travel 88 miles.

7 0

3 years ago