Answer:
It is not a function
because: 4: 25 went to 4: 35
an input can not have two or more outputs
Step-by-step explanation:
Y-3x=7 because in order for lines to be parallel, they must have the same gradient, which is 3 in this question
H(4) means you have to substitute 4 in for h. So the equation becomes H(4)=-2(4) + 4. You don't technically have to have the H(4) part in there when you work the equation. Use PEMDAS:
-2(4)+4
-2 x 4 = -8
-8 + 4
=-4
So, -4 is the answer. :)
Answer:
'less than or equal to' sign
