Write the equation of the line that passes through (1, -1) and is parallel to y = 2x + 6

y = 2 x + 6     given line

y = m x + b     standard equation for straight line

y = 2 x + b     for slope of unknown line to be the same

-1 = 2 (1) + b      substitute given vaues

b = -3

y = 2 x - 3      equation of line to be found

slope = 2

if x = 1 and y = -1

-1 = 2 - 3    or   2 = 2

e.

step-by-step explanation:

because there are always 10 numbers in a phone number.

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.