Hello there!
To find the slope of a line, we need to know at least two points contained in the graph of the line.
The slope of a line passing through the points and is given by the formula: .
As we can see on the graph, two points contained on the line are and .
Using the formula above, we get that:
Subtract the values on both numerator and denominator of the fraction
This is the slope of this line we were looking for and is the answer contained on the 4th option.
The graph is proportional
I hope you understand this. Remember x alone stands for 1
Answer:
(3a-1)(3a+1)
Step-by-step explanation:
This is the difference of two squares so we can factorise using the rules
x^2-y^2 = (x-y)(x+y)
In this case x = 3a and y = 1 since (3a)^2 = 9a^2 and 1^2 = 1
6a. n=600
6b. n=6
6c. n=1/6
6d. n=50
7. The answer is -55.8 or 7c.
All I had time to do but might edit answer later.