Do you have a photo of this problem so I can help you understand this
Given:
The graph of a line a.
To find:
The slope of the line a.
Solution:
Slope formula:

From the given graph it is clear that the line a passes through the points (-1,1) and (0,-2). So, the slope of the line a is:



The slope of the line a is -3. Therefore, the correct option is C.
The greatest common factor is 1 because there is not a number that goes into or will multiply and get 49 and 4. 49 is an odd number and 4 is an even number so the GCF is 1.
Question:
Select the three expressions that are equivalent to
:
a: 
b: 
c: 
d: 
Answer:
a: 
c: 
d: 
Step-by-step explanation:
Given
:
Required
Find equivalent expressions
<em>To solve this question; we'll simplify options a to do, one after the other</em>
a: 
From laws of indices;

This implies that;


From laws of indices;

This implies that


Hence,
is equivalent to 
b. 
From laws of indices;

This implies that


From laws of indices;

This implies that


Hence;
is not equivalent to 
c. 
From laws of indices;

This implies that


Hence,
is equivalent to 
d. 
From laws of indices;

This implies that

From laws of indices;

This implies that


Hence,
is equivalent to 
Answer: 4x²-9
Step-by-step explanation:
Step 1 : Equation at the end of step 1 : 22x2 - 9.
Step 2 : Trying to factor as a Difference of Squares : 2.1 Factoring: 4x2-9. Check : 4 is the square of 2. Check : 9 is the square of 3. Check : x2 is the square of x1 Factorization is : (2x + 3) • (2x - 3)