Look at this function: (−6, −13)( −4,−9)( −2,−5)( 0,−1) mark said that the function is linear. jason said that the function is nonlinear. which of the following explains who is correct?

a. mark, because for every 2-unit increase in x, there is an increase in y by 4

b. mark, because for every 4-unit increase in x, there is an increase in y by 2

c. jason, because the point (0, −1) does not lie on the straight line that contains the other points

d. jason, because the point (−6, −13) does not lie on the straight line that contains the

Answer with explanation:

→The given function is:

       (−6,−13)( −4,−9)( −2,−5)( 0,−1).

Difference in Y values

     = -13 - (-9)=-13+9= -4

    = -9 - (-5)=-9+5 =-4

    = -5 - (-1)= -5 +1= -4

Difference in X value

   = -6 - (-4)=-6+4= -2

   = -4 - (-2)= -4 +2= -2

   = -2 - 0= -2

→Difference in X values as Difference in y values between two points is same.

→The function is Linear.

→Mark is Right.

→Option B:

Mark, because for every 2-unit increase in x, there is an increase in y by 4 .

answer:

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

explanation:

service only with 20% tip  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

in the opening of the question the word 'service' is associated only with the pretax value.

the closing part of the question asks: how much did she pay for the  

service

−−−−−−  

so technically the answer is  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

however, the intention of the question provider may have been that your answer is to be  

$

87.12

(

1

+

8

100

)

=

$

94.09

to 2 decimal places.

'

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

tony b

mar 21, 2017

answer:

trying to explain it another way

explanation:

service charge  

.

→

$

72.60

20% tip  

20

100

×

$

72.60

=

$

14.52

−−−−−−  

←

add

$

87.12

tax  

8

100

×

$

87.12

=

$

6.97

−−−−−  

←

add

$

94.09

related questions

the data of the detroit pistons in numerical order from least to greatest is 0.30, 0.37, 0.55, 0.62, 0.69, 0.72, 0.73, 0.75, 0.77, 0.78, 0.80, 0.81, 0.81, 0.83, 0.84, 0.89

the data of the miami heat in numerical order from least to greatest is 0.50, 0.50, 0.56, 0.57, 0.67, 0.72, 0.72, 0.72, 0.75, 0.75, 0.76, 0.81, 0.82, 0.90, 1.00, 1.00

the detroit pistons median : 1.52

the miami heat median: 1.47

the iqr of this data is 0.05