<span>0, (4) = 4/9 <span>L circle = 2πR </span><span>L circle = 2 · π · 4/9 </span><span>L circle = 8π / 9 cm
</span></span>L = 2 * pi * R
<span>L = 2 * pi * 0. (4) cm = 0. (8) pi cm</span>
Answer:
The constant of variation is $1.50
Step-by-step explanation:
Given
Point 1 (1,2)
Point 2 (5,8)
Required
Constant of Variation
Though the graph would have assisted in answering the question; its unavailability doesn't mean the question cannot be solved.
Having said that,
the constant variation can be solved by calculating the gradient of the graph;
The gradient is often represented by m and is calculated as thus

Where

By substituting values for x1,x2,y1 and y2; the gradient becomes




Hence, the constant of variation is $1.50
Answer:
y+4=-2(x-4)
Step-by-step explanation:
y-y1=m(x-x1)
y-(-4)=-2(x-4)
y+4=-2(x-4)