3 years ago

Find f(-1) when f(x)=x^2+2x+7 Please show your work !!

Mathematics

1 answer:

inessss [21]3 years ago

4 0

Just put -1 instead of x in the function
(-1)^2+2(-1)+7=6

You might be interested in

1. The price of tomatoes went from $1.12 per lb to $1.96 per lb over 3 years. Find the average rate of change of the price of to

deff fn [24]

1.The answer would be D. 0.28 per lb per year.

2. The answer would be C. between 10 and 20 minutes.

Hope this helps:)

8 0

3 years ago

A subway car travels at a rate of 32 meters per second. How far does it travel in 16 seconds? Use d= r x t

Simora [160]

Answer:

I think 512 feet in 16 seconds.

6 0

3 years ago

Nanda Yueh and Lane Zuriff sell homes for ERA Realty. Over the past 6 months they sold 136 homes. Nanda sold 3 times as many hom

Marta_Voda [28]

Answer:

Lane sold 34 homes.

Nanda sold 102 homes.

Step-by-step explanation:

This question can be solved by a system of equations.

I am going to say that:

Nanda sold x homes

Lane sold y homes

Over the past 6 months they sold 136 homes.

This means that $x + y = 136$

Nanda sold 3 times as many homes as Lane.

This means that $x = 3y$

Replacing in the first equation:

$x + y = 136$

$3y + y = 136$

$4y = 136$

$y = \frac{136}{4} = 34$

Lane sold 34 homes.

$x = 3y = 34*3 = 102$

Nanda sold 102 homes.

5 0

3 years ago

IM BEGGING SOMEONE!!! PLZ HELP IM SO CONFUSED

valentinak56 [21]

Answer:

what grade really quick

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

On a cell phone mapping app, 5 cm represents 150 feet. Which equation represents this relationship?

denis-greek [22]

Answer:

y=150x

Step-by-step explanation:

let me know if its wrong

7 0

3 years ago