Answer:
2
Step-by-step explanation:
The y-intercept is the point on the graph where the line intersects with the y-axis. Since this point must be on the y-axis the x-value must be 0. Every coordinate on the y-axis has an x-value of 0. So, to find the answer find the y-value when x=0. In this case, when x=0, y=2. Therefore, the y-intercept is 2, also written as (0,2).
Answer:
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Answer:
A = 78.5
C = 31.4
Step-by-step explanation:
Circumference = 2πr
r = 5
C = 2(3.14)(5)
Circumference = 31.4
Area = 
r = 5
A = 
Step-by-step explanation:
because we can also find out the value of x in second equation like this
3x=21
x=21/3
x=7