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Alexxx [7]
3 years ago
11

Rewrite the equation y – 4x = –9 in slope-intercept form. simple explanation and proof

Mathematics
2 answers:
Strike441 [17]3 years ago
7 0

Answer:

The slope-intercept form of this equation would be y = 4x - 9.

(For explanation look down below)  

Step-by-step explanation:

Slope-intercept form would be an equation that would look like...

y = mx + b

Where m is the slope and b is the intercept. From this form, we can understand that all we need to do is rearange the formula in a way that positive y would be on its left side. And so we get...

y - 4x = - 9

y - 4x + 4x = - 9 + 4x

y = 4x - 9

dusya [7]3 years ago
4 0

Answer:

y=4x-9

Step-by-step explanation:

add 4x to both sides to isolate y

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max2010maxim [7]
If they both are equal to y, they must be equal to each other therefore,
6x-7 = 3x+11
3x = 18
x=6
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2 years ago
20 is less than the difference of 5 and twice x.
kotegsom [21]

Answer:

x=2

Step-by-step explanation:

20<5*2x

20=5*2x

20/5=5/5*2x

4=2x

x=2

4 0
3 years ago
what are the steps required to determine the equation of a quadratic function given its zeros and a point?​
mezya [45]

Answer:

Below

Step-by-step explanation:

The quadratic equations form is:

● ax^2+bx+c

Using the zeroes, we can write a factored form.

● a (x-x') (x-x")

x and x' are the zeroes

■■■■■■■■■■■■■■■■■■■■■■■■■■

●y = a (x-x') (x-x")

x' and x" are khown but a is not.

We are given a point so replace x and y with its coordinates to find a.

So the steps are:

● 1) Write the factored form of the quadratic equation

● 2) replace x' and x" with their values.

● 3) replace x and y with the coordinates of a khwon point.

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8 0
3 years ago
Write each equation in standard form. Identify A,B,and C. 2x=4y-1
podryga [215]

Answer: 2x - 4y = -1

Step 1: Move the variable.

2x - 4y = 4y - 1 - 4y

Step 2: Remove the opposites.

2x - 4y = -1

Answer = 2x - 4y = -1

Hope this helps!

3 0
3 years ago
Read 2 more answers
Write a piecewise-defined function that represents the graph?
kodGreya [7K]

Answer:

f(x) = { x, -5 ≤ x < 0 and 3x - 3, 1 ≤ x < 5

Step-by-step explanation:

The equation of one line is y = x

The equation of the other line is y = 3x - 3

Altogether,

f(x) = { x, -5 ≤ x < 0 and 3x - 3, 1 ≤ x < 5

4 0
2 years ago
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