Question

What are the x-intercept(s) of the graph of y + 30 = x2 + x?

(−5, 0) and (6, 0)

(−5, 0) and (−6, 0)

(5, 0) and (−6, 0)

(5, 0) and (6, 0)

Answer 1

at the points where the graph cuts the x-axis(x-intercepts), y=0
so,
\[x ^{2}+x-30=0\]\[x ^{2}+6x-5x-30=0\]\[x(x+6)-5(x+6)=0\]\[(x-5)(x-6)=0\]\[x=5 or 6\] So, the last option is correct.

Answer 2

(5,0)(0,6)?

Answer 3

(5,0)(6,0)