8.
the ordered pairs (2, –21) and (5, –45) are solutions to which of the following equations?
(1 point)
• y = –8x – 5
• y = –8x + 5
• y = 8x – 5
• y = 8x+ 5

Check the coordinates of the given points in each of the given possible answer functions (2, –21) and (5, –45), until you find the function satisfied by these two points.

Do these points satisfy the equation y = –8x – 5? Substitute 2 for x and -21 for y and determine whether or not the resulting equation is true:

-21 = -(2) - 5 This is false, and we can state that confidentally even

without checking whether the other given point is a solution.

Moving on to the next equation y = –8x + 5:

Is -21 = -8(2) + 5? Is -21 = -16 + 5? Is -21 = -11? No. Move on to the next equation: y = 8x – 5. Is -21 = 8(2) -5 true? No. Move on to the next equation:

y = 8x+ 5 Is -21 = 8(2) + 5? No.

It appears that the given points (2,-21) and (-5,-45) are not solutions of any of the four given equations.

answer: the 4 kilogram bag

step-by-step explanation: this is because if you divide the number of kilograms into the total it will tell you how much each individual kilogram would be worth. 2 kilos is 7 and change 3 would be around 6 ish and the 4 kilo would be 4.6 and change and the 5 kilos would be like 4.88

x+14

step-by-step explanation: