All categories

3 years ago

I NEED MATH HELP, QUICK! PLEASE HELP ME! Find f( -7) if f(x) = 3 - 2x.

Mathematics

1 answer:

goldenfox [79]3 years ago

6 0

Plug in -7 for x in the equation...

f(x) = 3 - 2( - 7 )

f(x) = 3 + 14

f(x) = 17

You might be interested in

Putt the fraction from grates to least value 1/2 5/6 3/4 1/3 1/6 1/4 2/3

gavmur [86]

1. 5/6
2. 3/4
3. 2/3
4. 1/6
5. 1/4
6. 1/2

7 0

2 years ago

Read 2 more answers

Find the slope of the line going through the points (0, -5) and (-2,1)

kvasek [131]

Answer:

$\displaystyle m=-3$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)
Slope Formula: $\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Point (0, -5)

Point (-2, 1)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [Slope Formula]: $\displaystyle m=\frac{-5-1}{0--2}$
[Fraction - Denominator] Simplify: $\displaystyle m=\frac{-5-1}{0+2}$
[Fraction - Numerator] Subtract: $\displaystyle m=\frac{-6}{0+2}$
[Fraction - Denominator] Add: $\displaystyle m=\frac{-6}{2}$
[Fraction] Divide: $\displaystyle m=-3$

8 0

2 years ago

The equation of a circle is x2 + y2 + Cx + Dy + E = 0. If the radius of the circle is decreased without changing the coordinates

valkas [14]

Answer:

Option E

Step-by-step explanation:

The standard equation of circle is:- (x-h)² + (y-k)² = r²

where (h,k) is center point and r is radius

If radius r is decreased then also (h,k) remains same, only r² increases

Equation given in question is x² + y² + Cx + Dx + E=0

So, C and D will remain same but E will increase

4 0

2 years ago

Plz help! It’s due soon!

gregori [183]

X-int: none
Y-int: (0,27)
Vertex: (-3,18)
AOS: x= -3
Max & Min Value: (-3,18)

8 0

2 years ago

A total of 750 students attended a conference at avenel high school the attendance of the number of girls was twice that of the

leva [86]

Answer:

250 boys attended the conference.

Step-by-step explanation:

First, divide 750 by 3 (one-third of the conference is boys) and you will get 250 (number of boys). If you wanted to find the number of girls too, you would simply double 250 to get 500 girls.

4 0

2 years ago