The graph shows the amount of money paid when purchasing bags of candy at the zoo: a graph is shown. the x-axis is labeled from 0 to 9 and the y-axis is labeled from 0 to 10. the four points shown on the graph are ordered pairs 0, 0 and 1, 2 and 2, 4 and 3, 6. these points are joined by a line. the label on the x-axis is bags of candy. the title on the y-axis is total cost in dollars. what is the constant of proportionality?
what is the constant of proportionality?

one-half
three-fourths
1
2

2

Step-by-step explanation:

i took it on my flvs exam and it was right

i dont know

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