Question

What is the equation for Graph B? Use C for hours in class and S for hours studying. Use * to indicate multiplication

Answer 1

Answer:

$S=\frac{C}{2}$

Step-by-step explanation:

From the graph B,

Let the equation of the line representing the relation between hours spent in studying 'S' and hours spent in class 'C' is,

S = mC + b

Where m = Slope of the line

b = y-intercept of the line

We choose two points (2, 1), and (4, 2) lying on the line.

Slope 'm' = $\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

m = $\frac{2-1}{4-2}$

m = $\frac{1}{2}$

y-intercept 'b' = 0

Equation of the line will be

S = $\frac{1}{2}C$