3 years ago

Find the y-intercept of the parabola y = x2 + 4x .

Mathematics

2 answers:

Gekata [30.6K]3 years ago

7 0

Answer:

(0,0)

Step-by-step explanation:

To find a y-int, plug x=0 into the equation because when the function crosses the y axis, x equals 0). y= 0^2 + 4 x 0 = 0.

borishaifa [10]3 years ago

3 0

Answer:

Step-by-step explanation:

y-intercept is when x = 0

y = 0² + 4(0) = 0

You might be interested in

Order these numbers from least to greatest. 2 12/5 2.47 square root of 3

Arturiano [62]

Answer:

square root, 2,12/5,2.47

Step-by-step explanation:

7 0

2 years ago

Let f(x)=3x^3-5x^2-8k-1, where k is a constant. When f(x) is divided by x-k, the quotient is g(x) and the remainder is 3k+2. Fin

Irina18 [472]

I think its like this.

6 0

2 years ago

Tickets to a concert cost $2 for children, $3 for teenagers and $5 for adults. When 570 people attended the concert, the total t

-Dominant- [34]

Let

x--------> the number of children

y------> the number of teenagers

z------> the number of adults

we know that

$2x+3y+5z=1,950$ ------> equation A

$x+y+z=570$ -----> equation B

$y=\frac{3}{4}x$

$x=\frac{4}{3}y$ -------> equation C

Substitute equation C in equation A and equation B

$2[\frac{4}{3}y]+3y+5z=1,950$

$\frac{17}{3}y+5z=1,950$ --------> equation D

$[\frac{4}{3}y]+y+z=570$

$\frac{7}{3}y+z=570$ --------> equation E

Multiply equation E by $-5$

$-\frac{35}{3}y-5z=-2,850$ --------> equation F

Adds equation D and equation F

$\frac{17}{3}y+5z=1,950\\\\-\frac{35}{3}y-5z=-2,850\\\\---------\\\\-\frac{18}{3}y=-900\\\\y=3*900/18\\\\y=150\ teenagers$

therefore

the answer is the option

$150\ teenagers$

4 0

2 years ago

Read 2 more answers

What are the age limitations relating to working in your state.

oee [108]

Each state is different. You have to look at your local laws.

8 0

2 years ago

Read 2 more answers

You are building a tower that is 4 ft. tall. Which would your need more of to build your 4 ft. tall tower?

laiz [17]

Answer:

pennies

Step-by-step explanation:

because they are thinner than notebooks and you will need more of them

3 0

2 years ago