Have you ever been in the middle of telling a story and had to use hand gestures or even a drawing to make your point? In algebra, if we want to illustrate or visualize a key feature of a function, we sometimes have to write the function in a different form—such as a table, graph, or equation—to determine the specific key feature we’re looking for. Think about your interactions with others and situations you’ve come across in your own life. How have you had to adjust or change the way you represented something based on either the concept you were trying to describe or the person you were interacting with?

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )