The ordered pairs (2,-21) and (5,-45) are solutions to which of the following equations?
y = -8x - 5
y = -8x + 5 <---- my answer
y= 8x - 5
y= 8x + 5
Its A, @steve gave the answer.
A? c? d? help meh
helppleassse
Well, if you take a look at the first coordinate of the ordered pairs (2,-21) and (5,-45), you'll see that the x-values match up with the equation y = -8x + b. Now, to figure out the value of b, let's use the second ordered pair. If you plug in x = 5 and y = -45 into the equation, you'd get -45 = -8(5) + b. Solving for b, you'd find b = -5. So, it looks like the correct equation is y = -8x - 5. Keep in mind, though, that humor is not always the most accurate way to answer questions - I'm just clowning around!
To determine which of the given equations the ordered pairs (2,-21) and (5,-45) are solutions to, we can substitute the x and y values of each ordered pair into the equations and see if they satisfy the equation.
For the first equation, y = -8x - 5:
Substituting the first ordered pair (2,-21):
-21 = -8(2) - 5
-21 = -16 - 5
-21 = -21
Substituting the second ordered pair (5,-45):
-45 = -8(5) - 5
-45 = -40 - 5
-45 = -45
Both substitutions yield true statements, so the ordered pairs (2,-21) and (5,-45) are solutions to the equation y = -8x - 5.
For the second equation, y = -8x + 5:
Substituting the first ordered pair (2,-21):
-21 = -8(2) + 5
-21 = -16 + 5
-21 = -11 (Not True)
Substituting the second ordered pair (5,-45):
-45 = -8(5) + 5
-45 = -40 + 5
-45 = -35 (Not True)
Therefore, the ordered pairs (2,-21) and (5,-45) do not satisfy the equation y = -8x + 5.
So, the correct answer is y = -8x - 5.
nope. check again.
stop guessing, and try the various functions! Just plug in a value for x and see whether the y also matches.
-8*2 - 5 = -21
-8*5 - 5 = -45