The x coordinate remains the same.
The Y coordinate changes from a positive number to a negative number.
This means that the figure is reflected across the X axis because positive Y values are above the X axis and negative Y values are below the X axis.
The answer is D.
(b)
A polynomial has the form

± 
+ ....
the only expression fitting this description is : x² + 2x + 7
Answer:
28
Step-by-step explanation:
Cross multiply
18k = 12 x 42
18 k = 504
k = 504/18
k = 28
Answer:
D
Step-by-step explanation: