Answer:
real
Step-by-step explanation:
-169 is a negative integer and integers are real numbers
Answer:
Lowest Price - Store B
Middle Price - Store C
Highest Price - Store A
Step-by-step explanation:
Store A Price - $22.50
25 x 0.1 = 2.5
25 - 2.5 = 22.5
Store B Price - $21.60
27 x 0.2 = 5.4
27 - 5.4 = 21.6
Store C Price - $22.1
26 x 0.15 = 3.9
26 - 3.9 = 22.1
Step-by-step explanation:
multiply 5x+2y=19 by 3 youll get 15x+6y=57
eliminate y
7x-6y=9
<u>15x+6y=57</u><u> </u> +
22x=66
x=3
substitute x to 5x+2y=19
15+2y=19
2y=4
y=2
The point-slope formula:

We have (-2, 1) and (1, 7).
Substitute:

