A. C.
Use a graphing calculator to sketch the graph of the quadratic equation, and then state the domain and range-
y = -5x² - 4x + 1
D: all real numbers
D: (x20)
R: ( 31.8)
R: all real numbers
b. D: all real numbers
d. D: all real numbers
R: ( 2 1.8)
R: ( 30.2)

Step-by-step explanation:

y = -5x² - 4x + 1 is a quadratic and thus is defined on the domain "all real numbers."  Because of the negative sign in front of the x^2 term, we know that this parabolic curve opens downward.  The x-coordinate of the vertex is x = -b/[2a], which in this case is x = 4/[2*-5], or -4/10, or -2/5.  Using synthetic division to determine the y-coordinate of the vertex, we get vertex (-2/5, 9/5).  9/5 is the maximum y value.  The range is (-infinity, 9/5].

i not know

step-by-step explanation:

fa tha first one you gonna add y to both sides

it look like this

x-y+y=6+y

x=y+6

therefore your answer is

x =y+6

fa tha second one

you gonna flip tha equation

it gonna look like x-4y=y

then add 4 to both sides

it gonna look like tha

x-4 +4 =y +4

so therefore tha answer is x=y+4

step-by-step explanation: