Find an Equation in Slope-Intercept Form (Where Possible) for the Line

Multiple Choice

Find an equation in slope-intercept form (where possible) for the line.
-In a lab experiment 3 grams of acid were produced in 13 minutes and 10 grams in 39 minutes. Let y be the grams produced in x minutes. Write a linear equation for grams produced.

A) $y=-\frac{7}{26} x+\frac{1}{2}$
B) $y=\frac{26}{7} x+\frac{1}{2}$
C) $y=\frac{7}{26} x+\frac{1}{2}$
D) $y=\frac{7}{26} x-\frac{1}{2}$