No. For example, if I gave you the equation y= 3x+5, the y-intercept will be at (0,5), eliminating the (0,0).
We can put this word problem into an equation.
1/3x = 7
Now we just have to solve for x. To find x we need to multiply by three on both sides.
1/3x = 7
*3 *3
-------------
x = 21
So it will take 21 hours to paint one wall.
Answer: D
Steps: In partially legible pic below. Sorry not the best explanation
3y=x-3
y=1/3x-1
Perpendicular slope: -3
y=-3x+b
Plug in the coordinates in the equation:
-9=-3(5)+b
-9=-15+b
4=b
Equation: y=-3x+4
Also, when finding the perpendicular slope you take the reciprocal of the original slope and make it negative if it is positive and make it positive if it’s negative.
16÷4/5 is 0.8
Step-by-step explanation:
i did it in a computer
