Prudie needs $90 or more to be able to take her family out to dinner. she already saved $30 and wants to taker her family out to dinner in 4 days. suppose that prudie earns the same each day. write an inequality to find how much she needs to earn each day. suppose that prudie earns $18 each day. will she have enough money to take her family to dinner in 4 days? explain.

step-by-step explanation:

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)