Find the vertex:
Determine if the parabola will open up or down:
Since the value of a is positive, the parabola will open upwards
Find the x and y intercepts:
Factor 
to find the x intercepts
(x+8)(x+2)
x + 8 = 0
x = -8
x + 2 = 0
x = -2
x intercepts:
x = -2
x = -8
Find the y intercept
Hence, C. Graph A best represents the quadratic function
answer
z = 100
opposite angles
when inscribed in a circle, the opposite angles of a quadrilateral add up to 180
so z + 80 = 180 and y + 120 = 180
solve for z
z + 80 = 180
z = 180 - 80
z = 100
Answer:
6a
Step-by-step explanation:
A coefficient is the number hooked to the variable therefore the term 6a is your coefficient
Answer:
4 ft
Step-by-step explanation:
<h3>Area of rectangle:</h3>
Area = 30 square ft
base = 7.5 ft
Answer:
0.375
Step-by-step explanation:
