How to solve an equation using the completing the square?

Mathematics

1 answer:

djyliett [7]3 years ago

4 0

I usually used formula
f(x)=a(x+b/2a)^2+c-b/4

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Convert this into slope intercept from & provide its slope 5x-2y=4

Elden [556K]

Slope Intercept Form: y=mx+b
m= slope
b= y-intercept

5x - 2y= 4
subtract 5x from both sides

-2y= -5x + 4
divide both sides by -2

y= (-5x + 4)/-2
negative divided by negative equals a positive; positive divided by negative equals a negative

y= 5/2x - 4/2
simplify where possible
y= 5/2x - 2

ANSWER:
Slope Intercept Form: y= 5/2x - 2
Slope: 5/2

Hope this helps! :)

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3 years ago

The length of the classroom is 36 feet.

murzikaleks [220]

35 x 25 = 875 square ft

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3 years ago

Read 2 more answers

8 Line in the xy-plane contains points from each of Quadrants II, III, and IV, but no points from Quadrant I. Which of the follo

iren2701 [21]

Answer:

The correct option is D.

Step-by-step explanation:

The slope of a line is the change in y with respect to x.

$m=\frac{y_2-y_1}{x_2-x_1}$

If the slope of a line is undefined it means it is a vertical line and a vertical line can not passes through three quadrants. So, option A is incorrect.

If the slope of a line is 0 it means it is a horizontal line and a horizontal line can not passes through three quadrants. So, option B is incorrect.

If the slope of a line is positive it means the value of y increases as x increases.

Since it is an increasing line, therefore after a certain period both x and y will positive. It means the line will passes through first quadrant. So, option C is incorrect.

If the slope of a line is negative it means the value of y decreases as x increases. It can passes through each of Quadrants II, III, and IV.

Therefore the correct option is D.