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X intercept of y=x^2+5x-24

User OzzyCzech
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1 Answer

26 votes
26 votes

Answer:

Explanation: to find the x-intercepts, that is the points on the x-axiswhere the graph crosses

x2−5x−24=0←in standard formfactorise the quadratic using the a-c methodthe factors of - 24 which sum to

- 5 are - 8 and + 3⇒(x−8)(x+3)=0equate each factor to zero and solve for

xx−8=0⇒x=8←x-interceptx+3=0⇒x=−3←x


-interceptgraph{x^2-5x-24 [-10, 10, -5, 5]}

User Avn
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