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Zielflug [23.3K]
3 years ago
12

Between which two ordered pairs does the graph of f(x) = 1/2x2 + x – 9 cross the negative x-axis? (–6, 0) and (–5, 0) (–4, 0) an

d (–3, 0) (–3, 0) and (–2, 0) (–2, 0) and (–1, 0)
Mathematics
1 answer:
lbvjy [14]3 years ago
3 0

Answer:

Between (-6,0) and (-5,0).

Step-by-step explanation:

When it crosses the x axis, it's an x-intercept. To find the x-intercept, set y (aka f(x)) to zero. The solutions to the equation are approximately 3.36 and - 5.36. Since you're finding the negative x-intercept, you only need the negative solution - 5.36. This is in between (-6,0) and (-5,0).

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What is 67 multiplyed by 55 ?
Brilliant_brown [7]

Hi there! :)

Step-by-step explanation:

Multiply- it's going to be product. It can also multiply by the numbers, fractions, decimals, factors, and multiples.

First, multiply by the numbers.

67*55=3685

335+3350=3685

Answer: \boxed{=3685}

Hope this helps!

Thanks!

-Charlie

Have a great day! :)

6 0
3 years ago
Read 2 more answers
Help please! I need answers quickly :((
Rzqust [24]

Answer:

y = - \frac{1}{2} x + 2

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 2) and (x₂, y₂ ) = (4, 0) ← 2 points on the line

m = \frac{0-2}{4-0} = \frac{-2}{4} = - \frac{1}{2}

The line crosses the y- axis at (0, 2) ⇒ c = 2

y = - \frac{1}{2} x + 2 ← equation of line

5 0
3 years ago
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I still need help. Ty. >333
Romashka-Z-Leto [24]

Answer:

Option 2, 3, and 4 are correct.

Step-by-step explanation:

5 0
3 years ago
Please someone help me !!!!!
Sveta_85 [38]
X² = 16
x = ±√16
x = <span>±4

</span>The roots of this equation are -4 and 4
<span>Сorrect answer is third from above</span>
6 0
3 years ago
What is the vaule of the expression x + y + - y<br> When x= -1 and y = 3
mel-nik [20]

Answer:

x + y - y \\  - 1 + 3 - 3 \\  =  - 1

6 0
3 years ago
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