Put in order from least to greatest 2.54, 5/2, 2.7, 15/7
2 answers:
You might be interested in
Answer:
see below
Step-by-step explanation:
x=y+3
Subtract 3 from each side
x-3 = y
y = x-3
y=-4x-3
We have both equations in slope intercept form
y = mx +b where m is the slope and b is the y intercept
graph is below
They both have the same y intercept so they intersect at (0,-3)
Substitution
x=y+3
y=-4x-3
Substitute the second equation into the first equation
x=y+3
x = -4x-3 +3
x = -4x
Add 4x to each side
5x =0
x=0
y = -4x-3
y = 0-3
y = -3
(0,-3)
Additon
x=y+3
Subtract y from each side
x-y = 3
y=-4x-3
Add 4x to each side
4x+y =-3
Add the equations together to eliminate y
x-y = 3
4x+y =-3
-----------------
5x +0y =0
5x = 0
x=0
Now solve for y
y = -4x-3
y = 0-3
y = -3
(0,-3)
<h2>Key Concepts</h2>
- Linear equations
- Slope-intercept form
Slope-intercept form looks like this:
- <em>m</em> = slope
- <em>b</em> = y-intercept
<h2>Solving the Question</h2>
We're given:
- <em>m</em> = 0
- <em>b</em> = -5
Plug the given values into y=mx+b: