Answer:
6 cause the numbers after the point are lesser than the numbers at the left of the point.. Its 6
First find the slope of the line.
m=slope=(y2-y1)/(x2-x1), in this case:
m=(-1-7)/(9--3)
m=-8/12
m=-2/3
You did not specify which form of the line you wanted.
Slope-intercept form is y=mx+b
y=-2x/3+b, using pint (9,-1) we can solve for b, the y-intercept...
-1=-2(9)/3+b
-1=-6+b
5=b then we have:
y=-2x/3+5 or more neatly
y=(-2x+15)/3
Point-slope form of a line is:
y-y1=m(x-x1), again using (9,-1) as the point and m=-2/3 you get:
y+1=(-2/3)(x-9)
Standard form of a line is ax+by+c:
We can rearrange y=(-2x+15)/3 to standard form
y=(-2x+15)/3 multiply both sides by 3
3y=-2x+15 add 2x to both sides
2x+3y=15
Answer:
7) y=5x+10
Step-by-step explanation:
10 is the y-intercept and 5 is the slope.
Since the price starts from 10 and increses by 5 as x increases by 1, slope is 5 and y-intercept is 10.
8) I attatched the file
