Write an equation in point-slope form of the line through points (7,6) and (9, 2). use (7,6) as the point (x1, y1). a. (y + 6) = −2(x + 7) b. (y + 6) = 2(x + 7) c. (y − 6) = −2(x − 7) d. (y − 6) = 2(x − 7)

Hi there,

The correct answer is C. Because you have to find slope first. The slope formula is Y2-Y1/X2-X1. You plug in as 2-6/9-7 then get -4/2. Finally -2 is your slope. Now you use point slope form equation which is (Y-Y2)=M(X-X2). You plug in as y-6= -2(x-7). Hope you can understand it.

answer: 2530

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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,