Answer:
Step-by-step explanation:
Next time please share the answer choices. Thanks.
Because the common factor 0.75 is less than 1 (but greater than 0), we know that this is a decaying function. As x increases, the graph approaches the x-axis (that is, the line y = 0).
Answer:
No mistake
Step-by-step explanation:
2x + y = 5
x - 2y = 10
y = 5 - 2x
x - 2(5 - 2x) = 10
x - 10 + 4x = 10
5x - 10 = 10
5x = 20
x = 4
2(4) + y = 5
y = -3
She made no mistake
You can check by plugging in x = 4 and y = -3 into the original equations . They fit exactly.
In order for the expression to have infinitely many solutions, we need to have a situation like this:
In other words, we need the left and right hand sides to be the same, so that the equality is actually an identity, and no matter which x-value you choose, the equality will hold.
In your case, if you mimic the template above, you have
And since we want , we want