Answer:
y=6x-15
Step-by-step explanation:
y-y1=m(x-x1)
y-3=6(x-3)
y-3=6x-18
y=6x-18+3
y=6x-15
Radius is the distance from the centre to any point in the circumference. i.e. radius =
![\sqrt{ (-7-8)^{2} + (-1-7)^{2} } = \sqrt{ (-15)^{2} + (-8)^{2} } \\ = \sqrt{225+64} = \sqrt{289} =17](https://tex.z-dn.net/?f=%20%5Csqrt%7B%20%28-7-8%29%5E%7B2%7D%20%2B%20%28-1-7%29%5E%7B2%7D%20%7D%20%3D%20%5Csqrt%7B%20%28-15%29%5E%7B2%7D%20%2B%20%28-8%29%5E%7B2%7D%20%7D%20%5C%5C%20%3D%20%5Csqrt%7B225%2B64%7D%20%3D%20%5Csqrt%7B289%7D%20%3D17)
radius = 17 units
X= 10.5 I used proportions in my head so 10.5 is the correct answer
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx
so
That means it's the equation of a line passing through the origin.
case a) and case d) are discarded because the line does not pass through the origin
<u>case b) we have</u>
for x=2 y=4
y/x=k-------> 4/2=2------> k=2
y=2x-------> in this case the value of y is two times the value of x
<u>case c) we have</u>
for x=4 y=2
y/x=k-------> 2/4=1/2------> k=(1/2)
y=(1/2)x-------> in this case the value of y is one-half of the value of x
therefore
the solution is the case c) see the attached figure
9514 1404 393
Answer:
B. 3x+y=4
Step-by-step explanation:
The constant on the right is positive, so the signs of the coefficients match the signs of the respective intercepts. The graph shows both x- and y-intercepts are positive, so the equation will have positive coefficients everywhere. The appropriate choice is ...
3x +y = 4