All categories

3 years ago

99 POINTS What is the equation of the line graphed?

Mathematics

2 answers:

Maurinko [17]3 years ago

8 0

Answer:

y = 3x-2

Step-by-step explanation:

We have the y intercept (where it crosses the y axis)

It crosses at y=-2

(0,-2) We need another point to find the slope.

Another point is (1,1)

The formula for slope is

m=(y2-y1)/ (x2-x1)

We have 2 points (0,-2) and (1,1)

= (1--2)/(1-0)

= (1+2)/(1-0)

3/1

m=3

The slope is 3 and the y intercept is -2

We can use the slope intercept form of the equation

y= mx+b where m is the slope and b is the y intercept

y = 3x-2

rjkz [21]3 years ago

3 0

Answer:

y = 3x - 2

Step-by-step explanation:

Two of the coordinates are (2, 4) and (1, 1). The slope of these is 3/1, or 3. Plug this back in to get that the slope-intercept form is y = 3x - 2.

You might be interested in

Use this rule to fill in the table. Rule: Subtract 6 from the input to get the output.

uranmaximum [27]

Answer:

1= 1

2=11

3=7

Step-by-step explanation:

subtract 6 from the input so

7-6=1

11-6=5 so input 11

13-6=7

7 0

2 years ago

Read 2 more answers

A taxi service charges $5.00 to ride in the vehicle and then $1.00 for each mile.

nikitadnepr [17]

Answer:76

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Muffins are sold in packages of 18 and cost $27 per package. Each of 6 friends gets an equal share of muffins from p packages of

Rina8888 [55]

Answer:

27/18= 1.5

18/6 = 3

3•1.5= 4.5

Step-by-step explanation:

$27 divided by 18 muffins equals $1.50, 18 muffins divided by 6 people equals 3, 3 muffins times $1.50 equals $4.50. So $4.50 is how much each person would have to pay.

5 0

2 years ago

Suppose that the function f is defined. , for all real numbers, as follows.

aivan3 [116]

Answer: The values of......

$f(-5)=\frac{9}{4}\\ \\ f(-2)= -1\\ \\ f(4)=0$

Step-by-step explanation:

Given function is: $\left \{ {{f(x)= \frac{1}{4}x^2 -4, if x\neq -2} \atop {=-1, if x=-2}} \right.$

For $f(-5),$ the value of $x$ is -5, which is not equal to -2.

So, $f(-5)= \frac{1}{4}(-5)^2 -4 = \frac{1}{4}(25)-4 =\frac{25}{4}-4=\frac{25-16}{4}=\frac{9}{4}$

For $f(-2),$ the value of $x$ is -2.

So, $f(-2)= -1$

For $f(4),$ the value of $x$ is 4, which is not equal to -2.

So, $f(4)=\frac{1}{4}(4)^2 -4 =\frac{1}{4}(16)-4 =4-4=0$

5 0

3 years ago

A square has an area of 100 in ^2. What is the perimeter of the square

almond37 [142]

Area of a square is its side length squared...

A=s^2 solving for s...

s=√A

The perimeter of a square is 4 times its side length...

P=4s, and since s=√A

P=4√A, and we are told that A=100 in^2 so

P=4√100

P=4*10

P=40 in

6 0

2 years ago