The answer to this question is a and c only
Answer: the first answer choice
Step-by-step explanation:
Answer: 
Step-by-step explanation:
Slope of two lines that are perpendicular to each other is 1.
If one line is
, then its slope = 3 [by comparing to the linear equation y= mx+c, here m=3]
Let n be the slope of the required line, then

Equation of line with slope n and passers through (a,b) is

Equation of line with slope n=
and passes through point ( 0,-4) :

Hence, Required equation : 
Answer:
1
Step-by-step explanation:
Add 4+1=5 then do 5÷5=1
Answer:
1a: f(-2) means substituting -2 for x
1b: 65
I don't know the second one