What is the slope of the line that passes through (-2, 7) and (4, 9)? user: which of the following represents 3x - 5y 10 = 0 written in slope-intercept form? user: the cost to mail a package is $7 for the first 2 pounds and 30 cents for each additional ounce. which of the following functions represents the cost to mail a package if x is the number of ounces over 2 pounds?
a. ��(x ) = 7 0.3x
b. ��(x ) = 14 0.3x
c. ��(x ) = 0.3(x 2)