1. You record the amounts of time you practice the piano each day for 10 days. Your friend practices the same total amount of time but for an equal number
of hours each day. How long does your friend practice each day?
Piano Practice
Answer here:
XXX XENZ
XX
X
O
1 2
1
Time (hours)
You friend practices
hours) each day

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)