Write the equation for a parabola with a focus at (-6,0)(−6,0)left parenthesis, minus, 6, comma, 0, right parenthesis and a directrix at x=-2x=−2x, equals, minus, 2. x=x=x, equals

step-by-step explanation:

b and c

c.

step-by-step explanation:

substitution for (0,1)

y=x^2+4x+1

1=0^2+4(x)0+1

1=0+4(x)0+1

1=4(x)0+1

1=0+1

1=1

substitution for (-3,-2)

y=x+1

-2=-3+1

-2=-2

the answer would be  

a.

3: 1

step-by-step explanation:

the linear relationship that represents a variation in direct proportion is the linear function that varies according to the numbers of its domain, for example the cost of producing x number of items can be represented in direct proportion by f (x) = mx + b, where m is the constant of proportionality, x the number of articles produced and b the fixed cost