Is the square root of 1.69 rational or irrational?
1 answer:
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Answer:
Step-by-step explanation:
Let
x = the amount of time William has been digging
y = the amount he has left to dig
The hole has to be in 2 ft deep. This means when William starts, the hole was 0 feet deep and has left 2 ft to dig. Hence, y-intercept is
He is able to dig at a rate of ft per minute. Thus, the slope is
(negative because the depth left to dig is decreasing).
The slope-intercept form of the equation is so in your case this equation is