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Find x-intercepts for the given function. (EASY! 10 Points)

Find x-intercepts for the given function. (EASY! 10 Points)-example-1
User GKA
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2 Answers

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Answer is D. ( 11, 0) and ( 3, 0)

Step by step

Given x^2 - 14x +33

To solve, use a table to find factors of 33.
There are only two: 33, 1 and 11, 3

Now we know one pair of numbers must multiply to equal 33 and also add to equal -14.

-11 x -3 = +33
-11 + -3 = -14

So the solution to the quadratic is
( x - 11 ) ( x - 3) = 0
Solve each

x - 11 = 0
Add 11 to each side to solve
x -11 + 11 = 0 + 11
Simplify
x = 11

x - 3 = 0
Add 3 to each side to solve
x -3 +3 = 0 + 3
Simplify
x = 3

So x = 11, x = 3
Y is 0 at x intercepts so

(11, 0) (3, 0) is your answer

I graphed it to prove the solution is correct

Your x coordinates are (-11,0) and (-3,0)
Find x-intercepts for the given function. (EASY! 10 Points)-example-1
User Mkind
by
8.9k points
3 votes

Answer:

Explanation:

Find x-intercepts for the given function. (EASY! 10 Points)-example-1
User Kit Plummer
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8.1k points

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