Answer:
1) 14 2) 6 3) 53 4)-2
Step-by-step explanation:
1) 15 - n/7 = 13
7*15 - 7*n/7 = 7*13
105 - n = 91
-n = 91 - 105
-n = -14
n = 14
2) 44 = - 4 + 8p
-8p = - 4 - 44
-8p = -48
-p = - 48/8
-p = 6
3) 21 - h= -32
-h = -32 -21
-h = -53
h = 53
4) -19 = 11b + 3
-11b = 19 + 3
-11b = 22
-b = 22/11
-b = 2
b = -2
X1 = -3/2 or -1.5
x2 = 2/3 or .666667
Rounding to the nearest hundredth would equal a more accurate and precise answer since more decimals are present. Your answer would be even more accurate if you rounded to the nearest thousandth.
The general formula: y=mx+b
(6,2) ⇒ x=6,y=2
m=3
b=?
2=3*6+b
2=18+b
b=-16
<u>y=3m-16</u>
