What is the first step in solving the quadratic equation x2 – 40 = 0?
O taking the square root of both sides of the equation
O adding 40 to both sides of the equation
O squaring both sides of the equation
O subtracting 40 from both sides of the equation

adding 40 to both sides of the equation

Step-by-step explanation:

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph