So y=mx+b
cost=m(number of pages)+b
cost=y
# of pages=x
so points are
(x,y)
(50,1.55)
(100,2.25)
(150,2.95)
(20,3.65)
so solve for slope/m you do (y₁-y₂)/(x₁-x₂) so
just use any for example
(1.55-2.25)/(50-100)=-0.70/-50=1 times 0.7/50=7/500= (to convet to decimal form) 14/1000=1.4/100=0.14/10=0.014/1=0.014
slpoe is 0.014
y=0.014x+b
input one of the points exg 50 for x and 1.55 for y and solve for b
1.55=0.014(50)+b
1.55=.7+b
subtract .7 from both sides
0.85=b
so the equation is
y=0.014x+0.85
which is C
B. 20. LR is similar to side LN
Answer:
I think the answer is 729..
Answer:
The slope-intercept form is 
Step-by-step explanation:
☆We are going to solve the equation.
☆We are solving for y.
☆All we need to do is divide.
Answer:
p = 1/8
Step-by-step explanation:
Step 1: Write out equation
-3p + 1/8 = -1/4
Step 2: Subtract 1/8 on both sides
-3p = -3/8
Step 3: Divide both sides by -3
p = 1/8
