I also need help with this one also
Answer:
4
Step-by-step explanation:
Hope this helps.
Both students are correct; the slope should be -1, passing through through (4,2) with a y-intercept of 6.
Answer:
12.9 cm ( nearest tenth )
Step-by-step explanation:
sin 40° = 
( multiply both sides by 20 )
20 × sin 40° = b, hence
b = AC = 20 × sin 40° = 12.9
Answer:
Vertex is (2,0)
Step-by-step explanation:
The vertex of a parabola is x=-b/2a
Since a=-2 and b=8, we have:
x=-8/2(-2)
x=-8/-4
x=2
So the vertex is (2,0)
