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3 years ago

When writing linear equations, how do you determine which form of a line to use?

2 answers:

6 0

When given two points, use point-slope form
When given a point and the intercept, use slope-intercept form.
When given a point and the slope, use point slope form.

mojhsa [17]3 years ago

4 0

If it does not specifically specify, the slope intercept form is usually acceptable. (y = mx + b).

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What is true slope of the line whose equation is y-4=5/2(x-2

dmitriy555 [2]

The answer is —> m=5/2

4 0

3 years ago

B) Imagine that you earned $8.425 in one year. If the government enforce

Eddi Din [679]

Answer:

take the tax %, divide by 100, and multiply by 8,425.

Step-by-step explanation:

Take the tax %, divide by 100, and multiply by 8,425.

8 0

3 years ago

Find a vector equation and parametric equations for the line through the point (7,4, 5) and parallel to the vector 3i 2j-k .

aleksley [76]

Answer: vector equation r = (7+3t)i + (4+2t)j + (5 - 5t)k

parametric equations: x = 7 + 3t; y = 4 + 2t; z = 5 - 5t

Step-by-step explanation: The vector equation is a line of the form:

r = $r_{0}$ + t.v

where

$r_{0}$ is the position vector;

v is the vector;

For point (7,4,5):

$r_{0}$ = 7i + 4j + 5k

Then, the equation is:

r = 7i + 4j + 5k + t(3i + 2j - k)

r = (7 + 3t)i + (4 + 2t)j + (5 - 5t)k

The parametric equations of the line are of the form:

x = $x_{0}$ + at

y = $y_{0}$ + bt

z = $z_{0}$ + ct

So, the parametric equations are:

x = 7 + 3t

y = 4 + 2t

z = 5 - 5t

4 0

3 years ago

HELP ASAP IF YOU TAKE THE POINTS IM REPORTING U QUESTION IN PIC

Andrew [12]

Let's call the number x. So four times the number minus five would look like
4x-5
Twice the number plus three would look like
2x+3
Now make the two equations equal
4x-5=2x+3
I'm going to subtract 2x from each side
2x-5=3
Now I'm going to add five to each side
2x=8
Now divide both sides by 2
x=4
To double check, just plug back into the original equations
4(4)-5=11
2(4)+3=11
They are equal, so the answer is x=4.

7 0

3 years ago

Read 2 more answers

Based on the graph, which inequality is correct for a number that is to the right of -4?

harkovskaia [24]

Answer:

2 > -4

Step-by-step explanation:

2 is a larger number than -4 because -4 is below the 2 which is in the positives. Hope this helps!

6 0

3 years ago

Read 2 more answers