The question is below

1. The rule is that for something to be a function, one input(x-value) can ONLY HAVE ONE output(y-value). If one input has more than one output, it is not a function. Your answer is #1 because you can only have 1 output

2. Since you've been given the input -> x = -10, substitute/plug it into the equation to find the output:

     Plug in -10 into "x"

y = -15 + 6

y = -9         Your answer is #2

the answer is 11.2 (i know i’m late)

irrational, then, just means all the numbers that aren't rational. every integer is a rational number, since each integer n can be written in the form n/1. however, numbers like 1/2, 45454737/2424242, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers.

step-by-step explanation: