3 years ago

What is the value of the function y=3x-1 when x = –1?

Mathematics

1 answer:

hjlf3 years ago

4 0

B. -4
Because all you do is fill in the x for -1 and then do the equation :)
y = 3(-1)-1
y = -4

You might be interested in

Find the sum of (8 +2 −4) and (3 − 5)

katen-ka-za [31]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Solve the following equation for p 15p + 5p = 60

frutty [35]

Answer:

I want to say letter c. p=3

5 0

3 years ago

Please need help from math experts!!!! Struggling so hard…

Alenkinab [10]

Answer:

Step-by-step explanation:

A(10,10) B(b,10b)

ax-2y=30

$a)\\a(10)-2(10)=30\\10a-20=30\\10a-20+20=30+20\\10a=50$

Divide both parts of the equation by 10:

a=5

Hence,

5x-2y=30

5(b)-2(10b)=30

5b-20b=30

-15b=30

Divide both parts of the equation by -15:

b=-2

Thus,

a=5 b=-2

$b)\\A(10,10)\ \ \ \ \ \ B(-2,-20)\\ \displaystyle\\C(x_C,y_C)=(\frac{10+(-2)}{2} ,\frac{10+(-20)}{2} )\\\\C(x_C,y_C)=(\frac{10-2}{2},\frac{10-20}{2} )\\\\C(x_C,y_C)=(\frac{8}{2} ,\frac{-10}{2})\\\\C(x_C,y_C)=(4,-5)\\Hence,\ C(4,-5)$

$5x-2y=30\\5x-2y+2y=30+2y\\5x=30+2y\\5x-30=30-30+2y\\5x-30=2y\\$

Divide both parts of the equation by 2:

2.5x-15=y

$c)\\y=2.5x-15$

The equation of the perpendiqular bisector

$\boxed {y=-\frac{x}{k} +b}$

Hence,

$\displaystyle\\y=-\frac{x}{2.5}-15 \\\\y=-0.4x-15$

5 0

2 years ago

Help Me Plzz I realllyyy neeeddd helpppp on thissss

Andreyy89

Answer:

it says how many sins you have committed

Step-by-step explanation:

do a sin

count the sin

write the sin

then get the cos

6 0

3 years ago

Read 2 more answers

F(x)=-x^2+3 pls help

Paha777 [63]

Answer:

answer = -1

.-(-2)^2 +3 = -4 +3 = -1

3 0

3 years ago