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2 years ago

Is this a function or not a function

Mathematics

2 answers:

notka56 [123]2 years ago

8 0

this is a function becuase it passes the verticle line test (no 2 points are above each other).

Katyanochek1 [597]2 years ago

5 0

Answer:

it is a function.

Step-by-step explanation:

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A equation to determine the number of minutes(t) that Raymond was on the trampoline

gtnhenbr [62]

Answer: t=43.25-7/1.25=29 minuets

Step-by-step explanation:

he spent $43.25. he had to pay $7 first to get in. then for each minuet had to pay 1.25.

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3 years ago

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as a sales person at Trending Card Unlimited, Justin receives a monthly base pay plus commission on all that he sells. If he sel

Amiraneli [1.4K]

Answer:

$1025

Step-by-step explanation:

We can use the 2-point form of the equation of a line to write a function that gives Justin's salary as a function of his sales.

We start with (sales, salary) = (400, 500) and (700, 575)

The 2-point form of the equation of a line is ...

y = (y2 -y1)/(x2 -x1)(x -x1) +y1

salary = (575 -500)/(700 -400)(sales -400) +500

salary = 75/300(sales -400) +500

For sales of 2500, this will be ...

salary = (1/4)(2500 -400) +500 = (2100/4) +500 = 1025

Justin's salary after selling $2500 in merchandise is $1025.

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3 years ago

Please answer all questions step by step PLEASE HELPP!!!! I'LL MARK YOU AS BRAINLIEST

Gre4nikov [31]

I think your teacher's just asking for the multiplied out version, so there's no work to do

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6. -(x+4) = x = 4

7. b(a- 6) = ab - 6b

8. 7a(3b -2c + 4) = 21ab - 14ac +28a

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3 years ago

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Carlos is driving on a straight section of highway from Ashford to Lincoln. Ashford is at mile marker 333 and Lincoln is at mile

Arte-miy333 [17]

Distance between the two cities:

453 - 333 = 120 miles.

Rest area is 2/3 of the way:

120 x 2/3 = 240/3 = 80 miles.

Divide the miles to the rest stop by his speed:

80 miles/ 60 miles per hour = 1 and 1/3 hours as a fraction. 1.3333 as a decimal( round as needed.

( 1 hour and 20 minutes)

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3 years ago

Need help ASAP!!!!! I WILL GIVE THE MOST BRAINLIEST TO THE FIRST PERSON THAT ANSWERS

lys-0071 [83]

Answer:

$x^2 + 10x + y^2 -4y + -7 = 0$

Step-by-step explanation:

For any circle point with coordinate of center (a,b) and radius r

equation of circle is given by

$(x-a)^2 + (y-b)^2 = r^2$

_______________________________________

Given

coordinate of center = (-5,2)

radius = 6

thus, equation of circle can be written by substituting a and b with (-5 ,2) and r =6 as shown below

$(x-a)^2 + (y-b)^2 = r^2\\(x-(-5))^2 + (y-2)^2 = 6^2\\x^2 + 10x + 25 + y^2 -4y + 4 = 36\\=>x^2 + 10x + y^2 -4y + 29 = 36\\=>x^2 + 10x + y^2 -4y + 29 -36 = 36 -36\\=>x^2 + 10x + y^2 -4y + -7 = 0$

Thus, equation of circle is $x^2 + 10x + y^2 -4y + -7 = 0$

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3 years ago