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masya89 [10]
3 years ago
15

Which is the graph of f(x) = (x - 1)(x + 4)?

Mathematics
2 answers:
zheka24 [161]3 years ago
6 0

You can determine this by finding zeros of quadratic function,

(x-1)(x+4)=0\implies x_1=1, x_2=-4.

Which eliminates first and third option.

Now we have up and down parabolas left.

If we factor (x-1)(x+4)=x^2+4x+\dots we find that the coefficient before x^2 determines how it is turned, since its positive its an upward turned parabola hence the answer is the last graph.

Hope this helps.

Vlad1618 [11]3 years ago
4 0

Answer:

last graph

Step-by-step explanation:

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2 years ago
You have been asked to find the inverse of f (x) = 3+Vx - 1. What would your
Paha777 [63]

Answer:

Add 1 to both sides of the equation.

Subtract 3 from both sides of the equation.

Step-by-step explanation:

The inverse of a function refers to that function that tends to undo another function.

If we intend to find the inverse of the function, f(x) = 3+ V2 - 1, we have to first add 1 to both sides of the equation and subsequently subtract 3 from both sides of the equation before taking the square root of both sides to obtain the inverse function.

Step-by-step explanation:

I hope this helps you :)

<em><u>-KeairaDickson</u></em>

8 0
3 years ago
If two triangles have three corresponding angles and three corresponding sides that are equal in measure, are the two triangles
nikitadnepr [17]
Yes, they are.

If the triangles have three corresponding angles equal means that they are either similar or congruent.

The definition of congruent means that the sides have the same length. That is precisely what the statement says.

So, being the lengths of the corresponding angles the same the two triangles are identical, this is they are congruent.
6 0
3 years ago
Read 2 more answers
He currently pays an AP$ of $1.87 per pound for fresh onions, but his yield is 50% after peeling and cooking the onions. What is
PolarNik [594]

Complete question :

Chef Charming and his mother sell cheese steak sandwiches at their food truck. They use fresh onions, and cook them slowly to caramelize them before putting them on their sandwiches.

Charming found a pre-cooked onion that was $8.3 per pound AP$, with 100% Yield. He wants to save money but isn't sure if that is a better deal than cooking the fresh onions himself.

He currently pays an AP$ of $1.87 per pound for fresh onions, but his yield is 50% after peeling and cooking the onions. What is the EP$ for the fresh onions, after caramelizing?

Answer:

$3.74

Step-by-step explanation:

Cost of fresh onions = $1.87 per pound

Percentage yield = 100% after caramelizing

Therefore EP$ for the fresh onions after caramelizing will be :

(1 + percentage yield) * cost of fresh onions

(1 + 100%) * $1.87

(1 + 1) * $1.87

2 * $1.87

= $3.74

3 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B6%7D%7B3%20%2B%2011i%7D%20" id="TexFormula1" title=" \frac{6}{3 + 11i} " alt=" \f
Lorico [155]

(3+11i)/(3+11i)=1

So that means you can multiply 6/(3+11i) by (3+11i)/(3+11i)

Then 6(3+11i)/1

= 18+66i

7 0
3 years ago
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