Which characteristics will prove that ΔDEF is an acute, isosceles triangle? segment DE and segment EF are congruent to each other but not to segment DF, and their slopes are not related. segment DE and segment EF are congruent, and their slopes are opposite reciprocals. segment DE is larger than segment EF, and their slopes are not related. segment DE is larger than segment EF, and their slopes are opposite reciprocals.

first option

a function is a relation in which an input is paired with exactly one output.

so, let's find the right answer.

in our first option, our inputs are january, february, and march. the outputs are 30, 28, and 25. each input has it's own output. this is correct!

our second option we know is incorrect, because ms. valverade has two outputs, dogs and cats. this is not a function.

our third option is incorrect as well. the yellow square has two ouputs, the square and the triangle.

lastly, in our fourth option, we see the number 7 two times with a different output. therefore, this is not a function.

remember: each input must be paired with only one output!

57 732

step-by-step explanation:

i dont really.know

well the 1 and -1 are always after the 0 and the 0 is inthe middle. s thats what i would guess. but i dont know what a slope of 2 is sorry

step-by-step explanation: