Answer:2063 658.5
Step-by-step explanation:
It is choice (A). If you tried it, you would see that it works.
Answer:
8
Step-by-step explanation:
Answer:
4. 53
5. 66
6. 89
7. 31
Step-by-step explanation:
4. 14 + 18 + 21
^ ^
33 + 21
53
5. 86 - 20
66
6. 34 + 55
89
7. 14 + 11 + 6
^ ^
25 + 6
31
<span>Given that,
y = mx + b ...... (1)
then the point-slope form make sense as a name for,
y - y1 = m(x-x1) .......(2)
Equation (1) we get,
y = mx + b
b = y - mx ....... (3)
m is a slope
b is the y-intersect
(x1,y1) is the points
Solve the equation (2),
y - y1 = m(x - x1)
y - y1 = mx - mx1
y = mx - mx1 + y1
y = mx + (y1 - mx1)
y = mx + b ......... (4) (use equation (3))
Therefore we prove the y = mx - b</span>
