1.2: A Cotuloy of Essential Functions
Liner Models: A line has slope m, y-intercept. (0,6) and
paints (x,y₁) and (82, y2):
Slope-intercept:
Ex. Sonia sells punnets
of strawberries
×2
2 for $5 und S for $9.50
Price grow linneurly
6. What is the glope in units
and what does it represent?
m=11.50/punnet
J = mx +6
Point Slope: y = y₁+m(x-x
or
Slope: ma rise
m=
run
·m (x^~x.)
м
a. Find C in §, for an order
as a function of the
number of punncts sold, p.
(e., C₁) = (2,5) (p₂, C2) £9,9.5)
AC. 4.5-5, 4.5-1.5=1
M=
ΔΕ
5-2
You pay 4.50 more for each c=(₁+m(p-p₁)
punnet purchased
C. What is the y-intercept including
units and what bees it represent
3
C= 5+1-5 (p-2)
((p) = 1.5p+2
6=$2
Other Classes of
Functions
There is a
a xed
cost of 82 for
.
each purchase
• Poly
Olyree of pla) in M., anis the
leading coef cient
nomial functions
p(x) = anx² +an+x^+...+
Where do
n
n-1
Ak are all real number
nnt, ..., 2,1,0, are
allficonnegutive
fi
Liner Models: A line has slope m, y-intercept. (0,6) and
paints (x,y₁) and (82, y2):
Slope-intercept:
Ex. Sonia sells punnets
of strawberries
×2
2 for $5 und S for $9.50
Price grow linneurly
6. What is the glope in units
and what does it represent?
m=11.50/punnet
J = mx +6
Point Slope: y = y₁+m(x-x
or
Slope: ma rise
m=
run
·m (x^~x.)
м
a. Find C in §, for an order
as a function of the
number of punncts sold, p.
(e., C₁) = (2,5) (p₂, C2) £9,9.5)
AC. 4.5-5, 4.5-1.5=1
M=
ΔΕ
5-2
You pay 4.50 more for each c=(₁+m(p-p₁)
punnet purchased
C. What is the y-intercept including
units and what bees it represent
3
C= 5+1-5 (p-2)
((p) = 1.5p+2
6=$2
Other Classes of
Functions
There is a
a xed
cost of 82 for
.
each purchase
• Poly
Olyree of pla) in M., anis the
leading coef cient
nomial functions
p(x) = anx² +an+x^+...+
Where do
n
n-1
Ak are all real number
nnt, ..., 2,1,0, are
allficonnegutive
fi
