The equation of line a is y= -8/5x + 4/3 line b is perpendicular to a what is th slope of line b

The slope of line b is  

Step-by-step explanation:

The product of the slopes of the perpendicular lines is -1That means if the slope of one of them is m, then the slope of the other is To find the slope of a perpendicular line to another line reciprocal its value and opposite its signThe form of the linear equation is y = m x + b, where m is the slope of the line and b is the y-intercept

∵ The equation of line a is y = x +

→ Compare it with the form of the equation above to find m

∴ m =

∴ The slope of the line a is  

∵ Line b is perpendicular to line h

∴ The product of their slopes = -1

→ To find the slope of b reciprocal the slope of line a and change its sign

∵ The reciprocal of and opposite sign of   is

∴ The slope of line b is  

To check your answer multiply the slopes they must give you -1

∵  ×    = -1

∴ The answer is correct

152 pencils remain after 14 days of school.

Step-by-step explanation:

Replace x in this formula with 14 (14 days):

f(14) = 250 - 7(14) = 250 - 98 = 152

152 pencils remain after 14 days of school.