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s2008m [1.1K]
3 years ago
13

4)_Slope = 4; contains (-5, - 13) I need help please

Mathematics
1 answer:
castortr0y [4]3 years ago
7 0

Answer:

The equation of the line with slope = 4 and point (-5, -13)

will be:

  • y=4x+7

Step-by-step explanation:

Given

  • slope = m = 4
  • point = (-5, -13)

As the point-slope form of the equation of line is

y-y_1=m\left(x-x_1\right)

where m is the slope.

substituting the values m = 4 and the point (-5, -13)

y-y_1=m\left(x-x_1\right)

y-\left(-13\right)=4\left(x-\left(-5\right)\right)

y+13=4\left(x+5\right)

subtract 13 from both sides

y+13-13=4\left(x+5\right)-13

y=4x+7

Therefore, the equation of the line with slope = 4 and point (-5, -13)

will be:

y=4x+7

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Answer:

2nd option is correct

Step-by-step explanation:

x +2y=14

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The x-values are the heartbeat(s) and the y-values are the time(s)

<h3>How to determine the x and y values?</h3>

The variables are given as:

Time(s) and Heartbeat(s)

As a general rule, the action that is being done is the independent variable.

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So, the x-values are the heartbeat(s) and the y-values are the time(s)

A possible value of this is;

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8x + 1 ≤ 9 + 6x ≤ 5 + 10x
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What is the product? (9 t minus 4)(negative 9 t minus 4) negative 81 t squared minus 16 negative 81 t squared + 16 negative 81 t
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The product is negative 81 t squared + 16 ⇒ 2nd answer

Step-by-step explanation:

The product of two binomials (ax + b)(cx + d), where a, b, c, and d are constant

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  • Multiply (ax) by (d) and (b) by (cx) ⇒ ext-reams and nears
  • Add the two products ⇒ like terms
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Let us find the product of (9 t - 4) and (-9 t - 4)

Multiply the 1st two terms

∵ (9 t)(-9 t) = -81 t²

Multiply the ext-reams

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Multiply the nears

∵ (-4)(-9 t) = 36 t

Add the like terms

∵ -36 t + 36 t = 0

Multiply the 2nd two terms

∵ (-4)(-4) = 16

Write the answer

∴ (9 t - 4)(-9 t - 4) = -81 t² + 0 + 16

∴ (9 t - 4)(-9 t - 4) = -81 t² + 16

The product is  -81 t² + 16

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