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Nezavi [6.7K]
2 years ago
14

Identifying functions

Mathematics
1 answer:
Gelneren [198K]2 years ago
5 0

Answer:

If all possible vertical lines will only cross the relation in one place, then the relation is a function. This works because if a vertical line crosses a relation in more than one place it means that there must be two y values corresponding to one x value in that relation.

Step-by-step explanation:

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(5,12)and (2,6) rate of change?<br> Initial value?<br> HURRY i NEED this done.
Otrada [13]

Answer:

Part 1) The rate of change is 2

Part 2) The initial value is 2

Step-by-step explanation:

we know that

The linear equation in slope intercept form is equal to

y=mx+b

where

m is the slope or rate of change

b is the y-intercept or initial value

step 1

Find the slope or rate of change

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

we have the points

(5,12)and (2,6)

substitute the values in the formula

m=\frac{6-12}{2-5}

m=\frac{-6}{-3}

m=2

therefore

The rate of change is 2

step 2

Find the initial value

we have

m=2

point\ (2,6)

substitute in the equation y=mx+b

6=2(2)+b

solve for b

6=4+b

b=2 ---> initial value

The linear equation is equal to

y=2x+2

The y-intercept or initial value is 2

8 0
3 years ago
Larry is buying a new video game that costs $35 plus 7% sales tax. How much will he pay for the video game with tax?
Mandarinka [93]
The answer is 37.45
Explanation:
.07x35=2.45 2.45+35=37.45
6 0
3 years ago
A dog won a race at the local fair by running 5 1/4 miles exactly 2 hours . At this constant rate , how long does it take it to
coldgirl [10]

Answer:

2.4 hours

Step-by-step explanation:

6 3/10 divided by 5 1/4 is 1.2. So 6 3/10 is 1.2 times more than 5 1/4. We then take the 1.2 and multiply it by 2 hours because we need to find what's 1.2 times more than 2 hours. So then you get 2.4 hours.

3 0
3 years ago
Q3.
s344n2d4d5 [400]

Answer:

F:13

Both S and F= 20

S:23

Dont study:4

Step-by-step explanation:

3 0
3 years ago
Rewrite the following statement in the form ∀x ______, if _______ then _______ (where each of the second two blanks are senten
Bumek [7]

Answer:

"Vx: if x is a valid argument with true premises then x has a true conclusion"

In a symbol form

Vx ( P(x) ⇒ 2(x) )

Step-by-step explanation:

The Following statement in the form  âˆ€x ______, if _______ then _______ is a valid argument and this because any valid argument with "true premises" has a "true conclusion" as well

we will rewrite this statement in a universal condition statement form

assume x is a valid argument with true premises

then the following holds true

p(x) : x is a valid argument with true premises

q(x) : x has true conclusion

applying universal conditional statement

"Vx, if x is a valid argument with true premises then x has a true conclusion"

In a symbol form

Vx ( P(x) ⇒ 2(x) )

7 0
2 years ago
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