Math, asked by ae28, 2 months ago

the graph of the quadratic relation y=x^{2}-3x-4

for what value or values of x is y=0?
a)x=-1 only
b)x=-4 only
c)x=-1 and x=-4
d)x=-1 and x=4

what is the answer

Answers

Answered by mystic05
1

Step-by-step explanation:

x²-3x-4=y

x²-3x-4=0

Therefore, by splitting the middle term

x²+x-4x-4=0

x(x+1)-4(x+1)=0

(x-4) (x+1)=0

Therefore,

x-4=0 or x+1=0

x=4 and x= -1

i.e. option d)

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