Please help? I need the answer quick!
1 answer:
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Answer:
see explanation
Step-by-step explanation:
Given the 2 equations
- 6x - 4y = 2 → (1)
- 4x - 7y = 2 → (2)
Multiplying (1) by 4 and (2) by - 6 will eliminate the x- term
- 24x - 16y = 8 → (3)
24x + 42y = - 12 → (4)
Add (3) and (4) term by term
26y = - 4 ( divide both sides by 26 )
y = = -
Answer:
a. The function is increasing for all real values of x where x < –4.
Step-by-step explanation:
Let me help you, I have answered this question once in Brainly as well
Given the factored form of the function:
f(x) = -(x + 6)(x+2)
<=> f(x) =
We will convert to vertex form
Let analyse other possible answers:
<u>a. The function is increasing for all real values of x where x < –4.</u>
True, because the parameter a = - 1 so the graph open down all over its domain
<u>b. The function is increasing for all real values of x where –6 < x < –2.</u>
Wrong, the function decrease in the interval from –4.< x < -2
<u>c. The function is decreasing for all real values of x where x < –6 and where x > –2.</u>
Wrong, the function increase in the interval from -6 < x < -4
<u>d. The function is decreasing for all real values of x where x < –4.</u>
Wrong, The function is increasing for all real values of x where x < –4.
