Write the quadratic equation whose roots are 1 and -1, and whose leading coefficient is 4

y = 4x² - 4

Step-by-step explanation:

y = a(x - x₁ )(x - x₂)

Plug in the knowns

y = 4(x - 1)(x + 1)

expand

y = 4(x² - 1)

y = 4x² - 4

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

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