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Assoli18 [71]
3 years ago
14

Answer plzzzzzzzzzzzzzz

Mathematics
1 answer:
levacccp [35]3 years ago
4 0

Slope-intercept form:  y = mx + b

(m is the slope, b is the y-intercept or the y value when x = 0 --> (0, y) or the point where the line crosses through the y-axis)

To find the slope (m), use the slope formula:

m=\frac{y_2-y_1}{x_2-x_1}        And plug in the two points

(3, -8) = (x₁, y₁)

(6, -4) = (x₂, y₂)

m=\frac{-4-(-8)}{6-3}     (two negative signs cancel each other out and become positive)

m=\frac{-4+8}{6-3}

m=\frac{4}{3}       Now that you know the slope, substitute/plug it into the equation

y = mx + b

y=\frac{4}{3} x+b     To find b, plug in either of the points into the equation, then isolate/get the variable "b" by itself. It doesn't matter which. I will use (3, -8)

-8=\frac{4}{3} (3)+b

-8 = 4 + b      Subtract 4 on both sides to get "b" by itself

-12 = b

y=\frac{4}{3}x-12

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3 years ago
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Can someone please answer number 14 a, b and c? Thank you.
Harrizon [31]
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If we were to say that there are 12 inches in a foot and therefore divide 42 by 12 (to get 42 inches in feet), we'd get the same answer due to that 1 foot is equal to 12 inches and if you were to divide it by 1 foot/12 inches, since they are the same thing, you get the same answer

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Standard form,written from,and expanded form

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