Aos= -b/2a so plunin your numbers and you'll get the AOS so you can find the vertex
Answer:
- Positive at (-9, 2)
- Negative at ( -oo, -9) or (2, + oo)
Step-by-step explanation:
<u>Given function</u>
<u>Getting zero's</u>
- -2x^2 - 14x + 36 = 0
- x^2 + 7x - 18 = 0
- x = ( -7 ± √(49 +72))/2 = ( -7 ± 11)/2
- x = - 9 and x = 2
<u>As the x^2 has negative coefficient, the function is positive between -9 and 2</u>
<u>And it is negative at:</u>
- x < -9 and
- x > 2
- or
- ( -oo, -9) or (2, + oo)
Answer:
y = 1/2x + 5/2
Step-by-step explanation:
Answer:
The answer is D the number that is 13 to the right of -4 on the number line.
Step-by-step explanation:
Answer:
6=6
True for all a
Step-by-step explanation:
