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3 years ago

Write the equation of 4x+5t=20 in slope-intercept form

Mathematics

2 answers:

AfilCa [17]3 years ago

7 0

Answer:

$y=-\frac{4}{5}x +4$

Step-by-step explanation:

Recall that slope-intercept form is the following form: $y=mx+b$ , where m is the slope and b is the y-intercept.

To get an equation into slope-intercept form, we just need to solve for y.

We begin with the equation $4x+5y=20$ . With this, we can solve for y to get our answer.

$4x+5y=20\\\\5y=-4x+20\\\\y=-\frac{4}{5}x +\frac{20}{5} \\\\y=-\frac{4}{5}x +4$

Aleonysh [2.5K]3 years ago

4 0

Answer:

y=(-4/5)x+4

Step-by-step explanation:

4x+5y=20

5y=-4x+20

y=(-4/5)x+4

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3 years ago

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Answer: $0=2x^2-7x-9\\0=4x^2-3x-1\\0=x^2-2x-8$

Step-by-step explanation:

We know that the standard quadratic equation is ax^2+bx+c=0

Let's compare all the given equation to it and , find discriminant.

1. a=2, b= -7, c=-9

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So it has 2 real number solutions.

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So it has only 1 real number solution.

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So it has 2 real number solutions.

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Thus it does not has real solutions.

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