Write the equation of the line that has the given slope and y-intercept:

m = -18 and b = -200

Step-by-step explanation:

Using the y=mx+b format where x and y are a point on the line and m is the slope while b is the y intercept.

The

y= -18x - 200

As you can see, the -18 was plugged in for the slope and the -200 was the y intercept.

(FYI you can plug in the x and y coordinates if they did not give you the m or b value.)

Hope you found this helpful! ;)))

21

jk it's 20

step-by-step explanation:

5x + 3y = - 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 line first of all in slope- intercept form

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

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form