Mathematics, 30.07.2019 00:00 krystalhurst97

Which of the following is false for an exponential growth function y = c(1 + r)t? a. when c > 0, the function decreases from left to right c. the graph of this function will be identical to the graph of y = abx, if a = c and b = 1 + r b. the function has a y-intercept of (0, c) d. if c > 0 and r > 0, then the graph will only have positive y-values.

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$y = c(1 + r)^t$ your choices area. when $c\ \textgreater \ 0$ , the function decreases from left to right b. the function has a y-intercept of $(0, c)$ c. the graph of this function will be identical to the graph of $y = a\cdot b^x$ , if $a = c$ and $b = 1 + r$ .d. if c > 0 and r > 0, then the graph will only have positive y-values. choice a is wrong.if you look at choice a: if $c \ \textgreater \ 0$ , then c is positive.when c is positive, then the only other thing that can make the exponential function be increasing or decreasing is $r$ .they did not put any restrictions for $r$ , meaning this is a claim that applies for all possible values or r. but if we say that $r=0.5$ and $c = 10$ , our function would look like $y = 10(1 + 0.5)^t \leftrightarrow y = 10(1.5)^t$ which is an increasing function, from left to right. the growth factor of 1.5 increases the initial value of 10 as t goes up. we showed a counterexample—an example when the claim does not work. so we can say this is false.choice a is false.if you look at choice b: the y-intercept is where the graph of the function intercepts the y-axis. since the y-axis is at t=0, plugging in yields $y = c(1 + r)^0 = c \cdot (1) = c$ because anything to the power of 0 is 1. since $y = c$ when $t=0$ , the point $(0, c)$ is on the graph of $y = c(1 + r)^t$ .so choice b is true.if you look at choice c: it is just a substitution. so it is also true.if you look at choice d: c > 0 means that there will be no reflections in the horizontal axis. we have no vertical translations either.all exponential functions that have no vertical translations or reflections in the horizontal axis will have only positive y-values. raising a real number to an exponent will never result in a negative numberso d is true.the only thing false is a. so a.

Answer from: Quest

Think of it as five or above give it a shove. change the 5 or above to the right to a zero and add one to the number on the left.
Can someone me with this! it’s for my little sister and she’s not sure what she has to do. asap

Can someone me with this! it’s for my little sister and she’s not sure what she has to do. asap

Answer from: Quest

Why you be expecting me to do your math u stupid butt? i ain't gonna but ima get points so you know what i'm sayin boii

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Which of the following is false for an exponential growth function y = c(1 + r)t? a. when c > 0...