An exponential function is in the form of whereby a is the early value and also b≠ 0 , b >1 .

You are watching: Which graph represents the function f(x) = |x| – 4?

Given: The role f(x) = y = ......<1>

The domain is all actual numbers and the selection is y > 0.

y-intercept identified as the graph crosses the y-axis.

Substitute the worth of x= 0 in <1> to fix for y;

y = = 4

y-intercept = (0, 4)

End behavior:

when b =3 >1

then;

as , as , therefore, the only graph which to represent the function y = is choice D

Hello native MrBillDoesMath!

4476mountvernon.com:

15

Discussion:

Given: measure up angle STQ = 7x + 55. But, as shown, STQ is a right angle so

7x + 55 = 90 => subtract 55 from every side

7x = 90 -55 = 35 => division each next by 7

x = 35/7 = 5

Since RS = (x+1) + (2x-1) where x = 5.

RS = (5 + 1) + (2*5 -1)

= 6 + 9

= 15

I don"t know what selection the 4476mountvernon.com is as your diagram only shows choice A

Thank you,

MrB

A blood sample has 50,000 bacteria present. A drug fights the bacteria such the every hour the variety of bacteria remaining, r(

4476mountvernon.com:

3125 bacteria

Step-by-step explanation:

Let r(0) it is in the initial amount of bacteria. Every hour, r(n) reduce by half. So, ~ one our brand-new value for r(n) = (1/2)r(0). After 2 hours, r(n") = (1/2)r(n) = (1/2)(1/2)r(0) = (1/2)²r(0).

See more: Answered: Separate This Redox Reaction Into Its Component Half-Reactions.

After n hours, r(n) = (1/2)ⁿr(0)

So as soon as n = 4 hours and also r(0) = 50,000, then

r(4) = (1/2)⁴r(0)

r(4) = (1/2)⁴ × 50,000

r(4) = (1/16) × 50,000

r(4) = 3125

So, after ~ 4 hours, we have 3125 bacteria present.

On the written part of her driving test, Sara acquired 84% of the inquiries right. If Sara gained 63 concerns right, how many complete que

4476mountvernon.com:

75 questions

Step-by-step explanation:

Let x = total number of questions

Multiply the number of questions by the percent she gained right to equal the variety of questions right