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Paraphin [41]
4 years ago
14

How do you know if it is a function ​

Mathematics
2 answers:
Eva8 [605]4 years ago
7 0

Answer:

use the straight line test

Step-by-step explanation:

use your pencil or draw a line horizontally (like this -> I )anywhere on the graph. If it's a function, it will only touch the line at one point no matter where you put the line.

Zigmanuir [339]4 years ago
6 0
A WAY easier (and faster), way to know if it is a function is to see if there are two of the same x-intercept (which make a vertical line). If there is, then it is NOT a function.
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The 5th term of linear sequence is 17
dedylja [7]

Answer:

397

Step-by-step explanation:

lets say there's an eqn which is y = mx + c, x is the term no. (5, 6 in the egs provided), y is the value corresponding to x (17, 21)

to find the 100th term sequence we need to find m and c. m is how much y changes when x increases by 1

in this case we can find m easily (m = 21-17 = 4)

now we have c left so just sub one of the egs given to what we have alrd found

17 = 4(5) + c

17 = 20 + c

c = - 3

so the eqn is y = 4x - 3, and we can solve for when x = 100

y = 4(100) - 3

y = 397

hope this isn't too confusing :^)

 

7 0
3 years ago
Let f(x) = x^2 + -8x + 19 what is the minimum value of the function? Enter your answer in the box
crimeas [40]
<h2>(4,3)</h2>

Function Template

ax^2 + bx + c

x^2 + -8x + 19

Max/Min Point Template

- (b / 2a)

- (-8 / 2 * 1)

- (-8 / 2)

- (-4)

4

Substitute the value into the function.

(x) = x^2 + -8x + 19

f(4) = 4^2 + -8(4) + 19

f(4) = 16 + (-32) + 19

f(4) = 3

Minimum point = (4,3)

3 0
3 years ago
Read 2 more answers
Help me please <br> Najdjajabahvaud
professor190 [17]

Answer:

$27

Step-by-step explanation:

Before entering, you have already payed, thus at 0 rides, your money payed is 27.

8 0
3 years ago
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At least 30 ..................
8 0
3 years ago
Anthony works at a company where he gets a set 5% raise every year. If his current salary is
algol13
117,150


5% of 71,000 is 3,550, 3,550 c 13(years) = 46,150(what the company will add to his salary) 71,000 + 46,150 = 117,150
3 0
3 years ago
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