Suppose that z varies jointly with x and y, and y = 3 when x = 2 and z = 30. What is z when x = 9 and y = 4? Use the step-by-step process you learned to solve this problem. Step 1: Set up the correct type of variation equation.

i think the answer is c sorry if it's wrong

83-45=38

38 was the other number

hope your goes well, here's a turkey

-thekoolkid1o1

i think you forgot some signs inbetween? if so comment and i'll try to

answer-

a. the total cost of a taxi ride includes an initial charge of approximately $3.30

solution-

in the graph,

x axis represents the distance traveled and

y axis represents the total fare

the best fit line intersects the y axis approximately at 3.30 or y-intercept is 3.30. at x=0, i.e when the taxi is still, the value of y or the cost of the fare is 3.30. that means $3.30 is the fixed charge which will be levied along with the other fare.

the slope of the line represent the cost per mile. as the best fit line is straight line, so the price per mile is constant.