The magnitude of an earthquake, measured on the Richter scale, is log Subscript 10 Baseline StartFraction Upper I Over Upper I 0 EndFraction , where I is the amplitude registered on a seismograph 100 km from the epicenter of the earthquake, and Upper I 0 is the amplitude of an earthquake of a certain (small) size. The largest earthquake struck with a magnitude of 7.5 on the Richter scale. Express this reading in terms of Upper I 0.

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!

answer: 0,6

step-by-step explanation:

this would make it the y intercept.

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.