1. 4 terms bcs each term is separated buy a + sign
2.
4x-6:x
24-6:6 = 23
Answer: x=3 and y=5
Step-by-step explanation: 11x-6y=3, 5x-8y=-25
11x-6y+6y=3+6y
11x/11=3/11+6y/11
x=3+6y/11
5(3+6y/11)-8y(11)/11
5(6y+3)-88y/11
30y+15-88y/11
88y-30y
58y
11(15-58y)/11=11(-25)
15-58y-15=-275-15
-58y/-58=-290/-58
y=5
x=3+6(5)/11
3+30
33
33/11
x=3
x=3, y=5
The slope-intercept form:
![y=mx+b](https://tex.z-dn.net/?f=y%3Dmx%2Bb)
m - slope
b - y-intercept
<em>add x to both sides</em>
<em>divide both sides by (-2)</em>
![y=-\dfrac{1}{2}x+5](https://tex.z-dn.net/?f=y%3D-%5Cdfrac%7B1%7D%7B2%7Dx%2B5)
It's a linear function.
We need only two points to plotting a graph.
We choose any three values of x and calculate y.
![\for\ x=0\to y=-\dfrac{1}{2}(0)+5=0+5=5\to(0,\ 5)\\\\for\ x=4\to y=-\dfrac{1}{2}(4)+5=-2+5=3\to(4,\ 3)\\\\for\ x=6\to y=-\dfrac{1}{2}(6)+5=-3+5=2\to(6,\ 2)](https://tex.z-dn.net/?f=%5Cfor%5C%20x%3D0%5Cto%20y%3D-%5Cdfrac%7B1%7D%7B2%7D%280%29%2B5%3D0%2B5%3D5%5Cto%280%2C%5C%205%29%5C%5C%5C%5Cfor%5C%20x%3D4%5Cto%20y%3D-%5Cdfrac%7B1%7D%7B2%7D%284%29%2B5%3D-2%2B5%3D3%5Cto%284%2C%5C%203%29%5C%5C%5C%5Cfor%5C%20x%3D6%5Cto%20y%3D-%5Cdfrac%7B1%7D%7B2%7D%286%29%2B5%3D-3%2B5%3D2%5Cto%286%2C%5C%202%29)
Answer:
yes
Step-by-step explanation:
1/4 = 0.25