Find the equation for the exponential function (y = ab) that passes through the points (2, 18) and (5, 486) You can assume the horizontal asymptote is at y = 0 (there is not up/down shift so you can use the new method I showed if you prefer that).
O y = 2(3)^x
O y = 3(2)^x
O y = 2/3(5.2)^x
O y = 6(3)^x

d i think

step-by-step explanation:

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

can you put the picture up?

step-by-step explanation:

$119.20

step-by-step explanation:

$372.50 - 60% off is $149. $149-20% off is $119.20