I don’t know all of it but....
Axis of symmetry is x=5
Vertex changed to (5,8)
Parabola opens down
Answer:

Step-by-step explanation:
The formula for finding slope is
Inserting your numbers would make the equation look like this:

Simplify:

Answer:
-4W + 1
Step-by-step explanation:
We can use the distributive property and rewrite -7 ( W - 4 ):
-7W + 28 + 3W - 27 = -4W + 1
We have a proportion: ?/50= 40/100
Cross multiply:
100*?= 40*50
⇒ ?= 40*50/100= 20
The student needs to score 20 points~