Suppose x and y vary together such that y=2x+11y=2x+11.
Suppose x varies from x=4 to x=11.5x
Over this interval, how much does x change by?
Δx=
Over this interval, how much does y change by?
Δy=
Over this interval, the change in y is how many times as large as the change in x?
times as large
Suppose x varies from x=−5 to =-5.1.
Over this interval, how much does x change by?
Δx=
Over this interval, how much does y change by?
Δy=
Over this interval, the change in yy is how many times as large as the change in x?
times as large
We’ll answer the first question since the exact one wasn’t specified. Please submit a new question specifying the one you’d like answered.
a. x varies from x=4 to x=11.5
So x changes by 11.5-4=7.5
Answer(a): 7.5
b. At x=4, y=2(4)+11=8+11=19
At x=11.5 , y=2(11.5)+11=23+11=3...
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