If f(x) is a linear function and the domain of f(x) is the set of all real numbers, which statement cannot be true?
a) the graph of f(x) has zero x-intercepts.
b) the graph of f(x) has exactly one x-intercept.
c) the graph of f(x) has exactly two x-intercepts.
d) the graph of f(x) has infinitely many x-intercepts.

step-by-step explanation: yes

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.

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 -