How much time until your castle is destroyed? Suppose you decide to build your castle at the average
waterline, just as the tide goes below the average
waterline. How long will you have to build your castle
before the tide rises back up to the average waterline
and destroys your work?
Use the graph to determine your answer. Use complete
sentences and appropriate units to give your answer.
Explain (using specifics) how you used the graph to
determine your answer.

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)

a

step-by-step explanation:

answer: i think one of the answer is $150 and $300?

step-by-step explanation:

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2