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n200080 [17]
3 years ago
9

Identify the equation in slope-intercept form for the line containing the point (0,7) and perpendicular to y=−5/4x+11/4. HELP PL

EASE!!

Mathematics
2 answers:
777dan777 [17]3 years ago
6 0

To write the equation of a line I need slope and y intercept (0,y)

I have y intercept (0,7)  of +7 as written in the equation

The equation y=-5/4x + 11/4 has a slope of -5/4

To get perpendicular slope is negated reciprocal

so take -5/4 and flip it -4/5 and change the sign (in this case negative to positive)  4/5

so the new equation is y=4/5x +7 (third one)

Nookie1986 [14]3 years ago
3 0

Answer:

To write the equation of a line I need slope and y intercept (0,y)I have y intercept (0,7)  of +7 as written in the equationThe equation y=-5/4x + 11/4 has a slope of -5/4To get perpendicular slope is negated reciprocalso take -5/4 and flip it -4/5 and change the sign (in this case negative to positive)  4/5so the new equation is y=4/5x +7 (third one)




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Step-by-step explanation:

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67% of final price = \frac{6700}{100}

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67% of final price is $67.

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How many negative roots will this function have? f(x) = x^7 – 2x^4 + 7x^2 + 2x – 2<br> help plsss
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There are two negative roots to the provided polynomial function

f(x) = x⁷ – 2x⁴ + 7x² + 2x – 2

<h3>What is polynomial?</h3>

Polynomial is the combination of variables and constants systematically with "n" number of power in ascending or descending order.

\rm a_1x+a_2x^2+a_3x^3+a_4x^4..........a_nx^n

We have a polynomial function:

f(x) = x⁷ – 2x⁴ + 7x² + 2x – 2

\rm f(x) =\left(x+1\right)\left(x^6-x^5+x^4-3x^3+3x^2+4x-2\right)

Using the zero product property:

\rm \left x+1\right = 0 \ \ \ or \left x^6-x^5+x^4-3x^3+3x^2+4x-2\right = 0

After solving:

x = -1, x = -0.853, and x = 0.418 (using the graph method)

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f(x) = x⁷ – 2x⁴ + 7x² + 2x – 2

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