Functions cannot have different values of y for the same value of x. Now let us check each case one at a time.
<u>First Case:</u> For the same value of x=-1, y has two different values of 7 and 1, which is not allowed in a function. Therefore, the first case is not a function.
<u>Second Case:</u> For the same value of x=-1, y has two different values of -5 and 1, which is not allowed in a function. Therefore, the second case is not a function.
<u>Third Case:</u> For the same value of x=3, y has two different values of 2 and 4, which is not allowed in a function. Therefore, third case is not a function.
<u>Fourth Case:</u> In this case no value of x is same. So, this is a function.
Answer:
See answers below
Step-by-step explanation:
6) 4ab + 13bc (As it is)
7) -6a²b²
8) -3x²
9) 11x²y + 6xy²
10) 8x - (-2x) = 10x
Hope this helps :)
30+1.95x=7.95x
so, 6x=30
x=5
2 tens & 15 ones is equal to 35
Because 2 tens = 20
15 already has a ten so add +10 to 20
30+5 is 35.
Answer:
$5
Step-by-step explanation:
25 = 4e + 5
20 = 4e
5 = e
reach eraser costs $5.
