This hard:( i need help :(

Step-by-step explanation:

The formula needed for this problem is..

.

Given that;

The height of the door= 200cm

The length of the door= 3cm

The width of the door= 80cm

Now, substitute the formula with the information given.

ddsf

step-by-step explanation:

dfs

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4