Answer:
-15/2 or -7.5 or -7½
Negative StartFraction 15 Over 2 EndFraction
Step-by-step explanation:
Slope or gradient of a line is the ratio of change in y co-ordinates to the change in x co-ordinates.
Therefore;
M=∆y÷∆x
The change in y co-ordinates is given by
∆y=y2-y1
Similarly, change in x co-ordinates is given by
∆x=x2-x1
Given the two points as (5, 80) and (7, 65)
X1=5 Y1=80
X2=7 Y2=65
∆y=65-80=-15
∆x=7-5=2
Hence ∆y÷∆x will be -15÷2=-7.5 or -7½
Negative StartFraction 15 Over 2 EndFraction
Answer: D
Step-by-step explanation:
The centre point is given by;
=
=
=(4, -5)
Answer:
Step-by-step explanation:
You first want to get rid of the numbers which are in parenthesis
(-345(-23)
This is a multiplication between negative numbers
The law of signs in mathematics states that negative times negative equals positive
(-) (-) = +
(-345(-23)= 7935
Then we multiply the number which is outside of the parenthesis (4x)
(4x)7935= 31740x
