Answer:
(-2, 0)
Step-by-step explanation:
Focus on the given equation: y=2x^2-x-10. Here the coefficients are a = 2, b = -1 and c = -10.
Then the roots (closely related to x-intercepts) are
-b plus or minus sqrt(b^2 - 4ac)
x = ------------------------------------------------
2a
or, specifically for the problem at hand,
-(-1) plus or minus sqrt([-1]^2 - 4[2][-10]
x = -------------------------------------------------------- = 5/2 (same as 2.5 in (2.5,0) )
2[2]
1 plus or minus sqrt(81)
= ---------------------------------------
4
1 plus 9 1 minus 9
= ------------- or ------------------- => 10/4 or 5/2 OR -8/4 = - 2
4 4
One x-intercept is given: (2.5, 0).
The other is (-2, 0)
The two square numbers which add up to 34 is 9 and 25, since 3^2 is 9 and 5^2 is 25
A would be (-3, 6).
B would be (-6, 3).
Anytime something is asking you to reflect off of the Y-axis, you put the original but flipped. Also, your answer will always be straight across vertically.
Answer:
12 miles
Step-by-step explanation:
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