2 years ago

The function f(x) = a^x + 4 will never cross the x-axis if a is positive. True or False?

Mathematics

1 answer:

Jet001 [13]2 years ago

8 0

Answer:

True

Step-by-step explanation:

If a is negative then the shape of the graph is an upside down U, which intersects the x-axis. If a is positive it will never cross the X axis.

You might be interested in

Deshawn has two bags of marbles. The first bag has 2 blue, 3 orange, and 5 red. The second bag has 4 pink, 10 blue, and 6 brown.

madreJ [45]

Answer: 0.1

Step-by-step explanation:

Given

Bag-I has 2 blue,3 orange, 5 red

Bag-II has 4 Pink,10 blue, 6 brown

No of ways of choosing a blue marble from bag-I

$\Rightarrow ^2C_1$

Total no of ways of choosing a marble from bag-I

$\Rightarrow ^{10}C_1$

No of ways of choosing a blue marble from bag-II

$\Rightarrow ^{10}C_1$

Total no of ways of choosing a marble from bag-II

$\Rightarrow ^{20}C_1$

The probability that he will pull out a blue marble from each bag is

$\Rightarrow P=\text{Probability of pulling a blue marble from bag-I}\times \text{Probability of pulling a blue out bag-II}$

$\Rightarrow P=\dfrac{^2C_1}{^{10}C_1}\times \dfrac{^{10}C_1}{^{20}C_1}\\\\\Rightarrow P=\dfrac{2}{10}\times \dfrac{10}{20}=\dfrac{1}{10}$

3 0

3 years ago

Which function has the greater maximum value: f(x) = -2x2 + 8x-1, or g(x),

aleksklad [387]

Answer:

It’s f(x)

Step-by-step explanation:

4 0

2 years ago

Whats the value of e? -(4e+7)=1

LekaFEV [45]

Answer:

-2

Step-by-step explanation:

-(4e+7)=1

-4e-7=1

-4e=1+7

-4e=8 divided both side by -4

e=-2

4 0

2 years ago

in one baseball season, peter hit twice the difference of the number of home runs alice hit and 6. altogether, they hit 18 home

Vedmedyk [2.9K]

I think it would be 3 because if you divide 18/6=3

6 0

3 years ago

If k=1.3 what is the value of 6k + 2

almond37 [142]

The answer to "6k+2" if "k=1.3" is "9.8".

7 0

2 years ago

Read 2 more answers