Asked by Anonymous
16. Use the quadratic formula to solve the equation.
〖5x〗^2 - 47x = 156
18. What are the solutions to the equation x2 – 4x = -1?
19. Graph the set of points. Which model is most appropriate for the set of numbers?
(1,3), (0,0), (-3,3), (-1,-1), (-2,0)
〖5x〗^2 - 47x = 156
18. What are the solutions to the equation x2 – 4x = -1?
19. Graph the set of points. Which model is most appropriate for the set of numbers?
(1,3), (0,0), (-3,3), (-1,-1), (-2,0)
Answers
Answered by
Anonymous
Please answer
Answered by
Anonymous
actually just answer 18 and 19
Answered by
Steve
#18
x^2-4x+1 = 0
x = (4±√20)/2 = 2±√5
#19
Hmmm. You don't say what models you have been using. Arranging the points from left to right, we have
x y
------
-3 3
-2 0
-1 -1
0 0
1 3
The symmetry makes me want to try a quadratic with vertex at (-1,-1)
y = (x+1)^2 - 1
x^2-4x+1 = 0
x = (4±√20)/2 = 2±√5
#19
Hmmm. You don't say what models you have been using. Arranging the points from left to right, we have
x y
------
-3 3
-2 0
-1 -1
0 0
1 3
The symmetry makes me want to try a quadratic with vertex at (-1,-1)
y = (x+1)^2 - 1
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.