Find the standard equation of a line with slope 3/4 and y- intercept of -1

3x - 4y = 4

Step-by-step explanation:

The equation of a line in standard form is

Ax + By = C ( A is a positive integer and B, C are integers )

Express the equation in slope - intercept form

y = mx + c ( m is the slope and c the y- intercept ), thus

y = x - 1

multiply through by 4

4y = 3x - 4 ( add 4 to both sides )

4y + 4 = 3x ( subtract 4y from both sides )

4 = 3x - 4y, or

3x - 4y = 4 ← in standard form

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers