Answer:
a. 
b. 
c. 
d. 
Step-by-step explanation:
Gradient is just another similar term for slope l, 
, and it can be calculated by 
where 
and 1
is the 
-coordinates of point 
We let 
be point 
and 
be point 
, we can then write the equation:
.
It also says that the points are with a gradient of so 
. We can then write the equation:
Finding 
If 
:
Writing an expression for in terms of 
.
Writing an expression for in terms of
Finding if 
Don’t know sorry wanted to help anyway
Answer:
The least common multiple of 453 and 609 is 54201
Step-by-step explanation:
Answer:
Second from top...
The average rate of change is $0.07, meaning that for each minute of talk time, the monthly bill increases by $0.07.
Step-by-step explanation:
Pick any two points and calculate the slope which will represent the rate of change:
(Minutes, Cost)
(0, 9.95)
(10, 10.65)
Rate of change:
slope m = (y₂ - y₁) / (x₂ - x₁)
= (10.65 - 9.95) / (10 - 0)
= 0.7 / 10
= 0.07
y is cost
m is rate of change
x is minute(s) use
b is fixed monthly cost regardless if any minutes is used
y = mx + b
y = .07x + 9.95
Answer:
A , B, D
Step-by-step explanation:
YX is the segment joining points Y and X and is defined (A)
∠ XYZ is the angle between XY and YZ and is defined (B)
∠ YXZ is the angle between YX and XZ
However there is no segment joining XZ ← not defined
YW is the segment joining points Y and W and is defined (D)
