Sanjay graphs a quadratic function that has x-intercepts of –3 and 7. which functions could he have graphed? check all that apply. g(x) = x^2 – 4x – 21 g(x) = (x – 3)(x + 7) g(x) = 3x^2 – 12x – 63 g(x) = –(x + 3)(x – 7) g(x) = x^2 + 4x – 21

we will select each options and find zeros

(a)

for finding x-intercept , we can set g(x)=0

and then we can solve for x

now, we can factor it

we get

so, this is TRUE

(b)

we can set it to 0

and then we can solve for x

we get

so, this is FALSE

(c)

we can set it to 0

and then we can solve for x

so, this is TRUE

(d)

now, we can set it to 0

and then we can solve for x

so, this is TRUE

(e)

we have

now, we can set it to 0

and then we can solve for x

so, this is FALSE

could you give more information?