Three functions of the form ()=+f of . open x close equals eh , x squared , plus b x are graphed for =eh equals 2 and different values of b. A. What do the graphs have in common? In what ways do they differ?

B. What do you notice about the x‑intercepts of each graph? What do you notice about the y‑intercepts of each graph?

C. Look for Relationships Look at the ratio b over eh for each function and compare it to its graph. What do you notice?

d

step-by-step explanation:

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places