Given the coordinate points (9,9) and (15,12). sara claims that the linear equation is y=1/3x-2 and brad says the equation is y=1/3x+6. construct your own function from these two data points to determine who is correct. show your work. next, create your own " who's right? " based on the example above and create a key

y = 1/2 * x + 4.5,   both Sara and Brad were wrong

Step-by-step explanation:

Line pass (9,9) and (15,12)

y = mx + b

m = difference of y/ difference of x = (12 - 9) / (15 - 9) = 1/2

y = 1/2 * x + 4.5

check Sara: y=1/3x-2     (9,9)   y = 1/3 * 9 -2 = 1 ≠ 9

check Brad  (9,9)      y = 1/3 * 9 + 6 = 9

                     (15,12)   y = 1/3 * 15 + 6 = 11 ≠ 12

nswer: a   y-axis

step-by-step explanation:

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet