_8 Which of the following is/are NOT exponential equation/s?iy = xa) i onlyb) i, ii, and i onlyii y = abii y = 2x°iv y = c2xc) i, ii, i and ivd) none of the above_9 The value y = 1 is always present in f(x) = a*.a) trueb) falsec) sometimes trued) cannot be determined_10 Chemists define the acidity or alkalinity of a substance according to the formulapH = -log(H*] where [H*] is the hydrogen ion concentration, measured in moles perliter. You test some ammonia and determine the hydrogen ion concentration to be[H*] = 1.3 x 10-9. Find the pH value.a) 8.0b) 8.09c) 8.99d) 8.89_11 Write an equation to describe the logarithmic function in form y = alogbx, with base 3and passing through the point (81,2).a) The equation is y = 5log3x.b) The equation is y =0.5log3x.c) The equation is y=5.0log3x.d) The equation is y =.5log3x._12 The graph of a logarithmic function passes through x = -2, what is the domain?a) The domain is the set of RealNumbers excluding 2.b) The domain is the set of RealNumbers greater than -2._13 What is the y – intercept of log2 (x+4)?a) (0, 0)b) (0, 1)c) The domain is the set of RealNumber greater than 2.d) The domain is the set of RealNumbers including -2.c) (0, 2)d) (0, -2)_14 What happens to the y value if f(x) = 2* is changed to f(x) = 2*1?a) The y in f(x) = 2**1 is equal to f(x) = 2".b) The y in f(x) = 2**1 is less than that of f(x) = 2%.c) The y in f(x) = 2*+1 is greater than that of f(x) = 2%.d) The y in f(x) = 2**1 is twice the y value of f(x) = 2*._15 Given the points (0,1). (1,4), (2,16) and (3,64) as some values in a table for anexponential function, what is the common ratio?a) ob) 2c) 4d) 8_16 Loudness is measured in decibels. The formula for the loudness of a sound is givenby dB = 10logM where lo is the intensity of sound that can barely be perceived.Considering that prolonged exposure to sounds above 85 decibels can cause hearingdamage or loss, and considering that a gunshot from a .22 rimfire rifle has an intensity ofabout M = (2.5 x1013), should a policeman follow the rules and wear ear protection whenrelaxing at the rifle range?a) The rifle creates a noise level of about 134 decibels and therefore an ear protectionis NOT necessary.b) The rifle creates a noise level of about 134 decibels and therefore an ear protectionis necessary.c) The rifle creates a noise level of about 125 decibels and therefore an ear protectionis necessary.d) The sound that the rifle creates cannot be determined._17 The expression logb(x®) can be written as:a) blogxb) xlogbec) plogsxd) xlog _1 Which of the following is an exponential function?а) у - хb) f(x) = x²c) y = 22d) f(x) = 2*_2 What does it imply when the graph of f(x) = a* is asymptotic to x axis?a) The graph's trend increases to the left of the y – axis.b) The graph's trend decreases to the left of the y – axis.c) The graph's trend decreases to the right of the y – axis.d) The graph's trend can either be that of a growth or decay function._3 What will be the behavior of the graph of an exponential function if the y intercept is at(0, 2)?a) The graph follows an exponentialgrowth.b) The graph follows an exponentialdecay.4 The formula for the Richter rating of a quake is given by R - logQ.You have a seismograph set up at home and see that there was an event while youwere out that had an intensity of Q = 989. A Richter rating of 4 or more means amoderate quake occurred. Which of the following is TRUĚ given the situation?a) The intensity of 989 is the result of a strong quake.b) The intensity of 989 is the result of a microquake.c) The intensity of 989 is the result of a moderate quake.d) The intensity of 989 is NOT within the scale.c) The trend of the graph isdecreasing.d) The graph is asymptotic to the x-axis._5 Is -1 part of the solution set for log7 (x+2) s 1?a) Yes, because the solution set is -2

According to the guidelines of bartleby I will do only first question please ask rest of the…

i y - ab iy -x a) i only b) i, ii, and i only i y - 2x° iv y - c2* c) i, ii, i and iv d) none of the above _9 The value y- 1 is always present in f(x) = a*. a) true b) false c) sometimes true d) cannot be determined 10 Chomicte dofino the aci alkalinity of a cubctarnce acc ording to the formula