10 POINTS EACH PERSON Which of the following ordered pairs could be placed in the table below and still have the relation qualify as a linear function?

Input
(x) Output
(y)
−5 7
−3 15
−1 23
? ?
(0, 31)
(−7, 30)
(1, 31)
(0, −1)

3

Step-by-step explanation:  

y increases by 8 as x increases by 2 so the relationship is linear with slope 4. That is y=4x+c and 7=-20+c, so c=27.

The relationship seems to be y=4x+27. The only point to fit this equation is (1,31), Answer 3

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -

step-by-step explanation:

x-intercept:

(

−

1

+

√

7

,

0

)

,

(

−

1

−

√

7

,

0

)

y-intercept:

(

0

,

−

6

)