Question

1. here is a circle with center h and some line segments and curves joining points on the circle. identify examples of the following. explain your reasoning. a. diameter b. radius 2. lin measured the diameter of a circle in two different directions. measuring vertically, she got 3.5 cm, and measuring horizontally, she got 3.6 cm. explain some possible reasons why these measurements differ. 3. the graph of a proportional relationship contains the point with coordinates (3,12). what is the constant of proportionality of the relationship?

Explanation:

Step1: Recall the formula for the constant of proportionality

For a proportional relationship \(y = kx\), where \(k\) is the constant of proportionality. Given a point \((x,y)=(3,12)\).

Step2: Solve for \(k\)

Substitute \(x = 3\) and \(y = 12\) into the formula \(k=\frac{y}{x}\). So \(k=\frac{12}{3}\).

Answer:

\(4\)