Answer:
A
Step-by-step explanation:
Just find the vertex and then compare with graph
#a
Parabola opening upwards
Graph 3
#2
Vertex at (-3,0)
Graph IV
#3
Parabola opening downwards as a is -ve
Graph I
#4
One graph is left
Answer:
20
Step-by-step explanation:
Answer:
71 degrees
Step-by-step explanation:
y=19 degrees
z and y=90degrees
90 _19 to get y