Answer:
y - 9 = -13(x - 1)
Step-by-step explanation:
sounds as tho you want to find the equation of a line thru the point (1, 9) that has a slope of -13. Use the point-slope formula y - k = m(x - h) for this purpose. Here m = -13, h = 1 and k = 9. Therefore,
y - k = m(x - h) becomes y - 9 = -13(x - 1). This is the desired equation in point-slope form.
Don't you mean "coords," or (better yet) "coordinates?"
Look at line DG as an example. It's vertical. If you rotate the whole figure clockwise, then line DG becomes the horiz. line D'G.' G' would have the coordinates (-1,-1), and D' (5,-1). Plot these points G' and D' and see whether or not you agree.
Answer:
The constant of proportionality of the equation is 1.5.
Step-by-step explanation:
Equation of proportional measures:
Suppose that y and x are proportional measures. This situation can be equatialized is:
y = ax
In which a is the constant of proportionality.
y = 1.5x. What is the constant of proportionality of the equation?
a = 1.5, so the constant of proportionality of the equation is 1.5.
Circumference: 2πr C=18 so r= 18/2π= 9π
Arc length = rθ 6=(9π)θ θ=6/9π
Convert to degrees by multiplying by 180/π
6/9π x 180/π = 120 degrees
