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3 years ago

Help!!! Write linear equations given the graph

Mathematics

1 answer:

MissTica3 years ago

3 0

Identify the SLOPE (m) and the Y-INTERCEPT (b).

To find the y-intercept, find the point where the line crosses the y-axis.

To find the slope, pick two points on the line that are easy to read.
Then see how many units up or down and how many units right or left you need to go from the first point to the second point. Divide the up or down (the rise) by the right or left (the run). That is the slope.

The equation is

y = mx + b,

where m = slope and b = y-intercept.

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Rewrite the expression below as the sum of one constant and one variable term 2(x-4)+6x-5x•3

Lorico [155]

Answer:

-7x-8

Step-by-step explanation:

First distribute the parenthesis:

2x-8+6x-5x·3

Following PEMDAS, Do multiplication next:

2x-8+6x-15x

Simplify:

-7x-8

6 0

4 years ago

What are the zeros of the function below? F(x)= (x-1)(x+1)/6(x-4)(x+7)

Lisa [10]

Answer:

+1 and -1

Step-by-step explanation:

The function in this problem is:

$f(x)=\frac{(x-1)(x+1)}{6(x-4)(x+7)}$

First of all, we have to define the domain of the function, which is the set of values of x for which the function is defined.

In order to find the domain, we have to require that the denominator is different from zero, so

$6(x-4)(x+7)\neq 0$

which means:

$x\neq 4\\x\neq -7$

So the domain is all values of x, except from 4 and -7.

Now we can solve the problem and find the zeros of the function. The zeros can be found by requiring that the numerator is equal to zero, so:

$(x-1)(x+1)=0$

This is verified if either one of the two factors is equal to zero, therefore:

$x-1=0\\\rightarrow x=+1$

and

$x+1 = 0\\\rightarrow x=-1$

We see that both values are part of the domain, so they are acceptable values: so the zeros of the function are +1 and -1.

7 0

3 years ago

Find the zero of the function f(x)=x^5-x^3+4x

Rufina [12.5K]

f(x)=x(x4−x2+4) hoped i helped

8 0

3 years ago

IF U KNOW HOW 2 DO SURFACE AREAS IN MATH THEN SOLVE THIS. I WILL CHECK ANSWER TO SEE IF UR RIGHT.

pishuonlain [190]

1040= 2 (gx13)+2 (13×8)+2 (g×8)

7 0

3 years ago

A camper attaches a rope from the top of her tent, 4 feet above the ground, to give it more support. If the rope is 8 feet long,

irina [24]

Using the Pythagorean theorem 4 would be the height and 8 would be the hypotenuse, you need to find the base

4^2 + X^2 = 8^2

16 x x^2 = 64

x^2 = 64-16
x^2 = 48

x = sqrt(48) = 6.92 feet ( round answer as needed )

6 0

3 years ago