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2 years ago

Proportions to Solve Problems - Item 3335

Mathematics

1 answer:

kaheart [24]2 years ago

5 0

Answer:

20:16

Step-by-step explanation:

Subtract the number of sharpened pencils you have from the total number and you have your ratio.

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Select the shape of the graph of y=−2/3x−3 from the selections below.

BARSIC [14]

Step-by-step explanation:

Line through (0,−3) slanting down.

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2 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

Which of the sets of equations represent the two lines graphed?

Oksi-84 [34.3K]

Answer:

B) y = x + 2 and y = -x - 4

Step-by-step explanation:

Let the equation of a straight line with x-intercept 'a' and y-intercept 'b' be

$\frac{x}{a} + \frac{y}{b} = 1$

The line with positive slope has x-intercept a=-2 and y-intercept b=2.

Its equation is:

$\frac{x}{ - 2} + \frac{y}{2} = 1$

Multiply through by 2

$- x + y = 2$

Solve for y,

$\boxed {y = x + 2}$

For the line with a negative slope,

the x-intercept is a=-4 and the y-intercept is b=-4

Its equation is

$\frac{x}{ - 4} + \frac{y}{ - 4} = 1$

Multiply through by -4

$x + y = - 4$

Solve for y

$\boxed {y = - x - 4}$

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2 years ago

What is the equation of the line in slope intercept form?

Sladkaya [172]

Answer:

y=3/5x+3

Step-by-step explanation:

The y-intercept which is the (+3) is taken from where the line crosses the y-axis.

The slop is found from rise over run, in this case, -5 to 0 is positive 5 this would go in the denominator, because we go from solid ground 0 to 3 without crossing another solid point, the numerator is 3.

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2 years ago