To find the value of x let's make the situation a bit easier
3x+10+70=180
3x+80=180
3x=180-80
3x=100
x = about 33.33
Answer:
y= 2x+1
Step-by-step explanation:
Points:
Form of the line:
- y=mx+b, m- the slope, b- y-intercept
Finding the slope:
- m= (y2-y1)/(x2-x1)
- m=(3-1)/(1-0)= 2/1= 2
Line is now:
Using one of the given points to find out the value of b:
So the equation for the line is:
1. 5.75x29.99 (the totals the answer)
2. 7.5x649.999
Do you understand what I'm trying to show? Do it with all of them and you should have the answers... but sorry if its wrong. Its been a while since I learned this.
