Answer:
ok
Step-by-step explanation:
ok
The temperature would be -10 degrees
7 more than twice a number, c
Answer:

Step-by-step explanation:
we have the expression

Convert to vertex form

where
a is the leading coefficient
(h,k) is the vertex
Complete the square


Rewrite as perfect squares

so
The coefficient a =1
The vertex is the point (-2,-2)