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4 years ago

11

Questions 4,5, and six

1 answer:

Setler79 [48]4 years ago

7 0

4. The equation is an exponential function where all y coordinates are above 4 (range is y>4), so for y=4 (answer D) there are no solutions. y=4 is the asymptote.

5. In a formula ax^2 + bx + c the discriminant is b^2-4ac. In this example the discriminant is 9-4*3*6 = -63. The fact that this value is negative reveals that this equation has no (real) solutions, only imaginary.

6. y=2x^2-x-5. Trial and error.

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Can someone explain how to do this please?

Rufina [12.5K]

for the columns where is less than or equal zero, use the first line of the function to calculate the value of f(x)

${ ( \frac{1}{3} ) }^{ - 2} - 1 = 9 - 1 = 8 \\ { ( \frac{1}{3} ) }^{ - 1} - 1 = 3 - 1 = 2 \\ { ( \frac{1}{3} ) }^{ 0} - 1 = 1 - 1 = 0$

for every x greater than zero, use the second line to determine the value

${3}^{1} - 2 = 3 - 2 = 1 \\ {3}^{2} - 2 = 9 - 2 = 7$

hope this helps and gives some insight what to do.

if there are open questions left, feel free to ask them in the comments

have a beautiful day

-Alex

3 0

3 years ago

Quanto fa 5+5<br><br> Quanto fa 5+5

Irina-Kira [14]

Answer:

10

Step-by-step explanation:

5+5=10

8 0

3 years ago

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A bus traveled 744 miles between two cities. The bus travels at a speed of 48 mph. Write a multiplication equation and then solv

Ket [755]

Answer:747

Step-by-step explanation:

7 0

3 years ago

Pls helpppppppppl!!!!

Troyanec [42]

Answer:

I dont really understand it but I think it's the first one cuz that's the only one that makes sense to me hope it helped tho:))))))))

8 0

3 years ago

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PLZ HELP MEEEEE!!!!! IN TEST

natima [27]

Plug it in.

y = -1, y1 = 1

x = 3, x1 = 1

-1 - 1 = m( 3 - 1)

-2 = 2m

m = -1

The slope is -1

y = -x +b

-1 = -3 +b

b = 2

The equation is y = -x + 2

Hope this helps.

7 0

4 years ago

Read 2 more answers