What is the equation of the linear function written in slope-intercept form?
1 answer:
Answer:
<h2>f(x) = -3x - 1</h2>Step-by-step explanation:
The slope-intercept form of an equation of a line:
<em>m</em><em> - slope</em>
<em>b</em><em> - y-intercept, (0, b)</em>
The formula of a slope:
From the graph we have two points <em>A(-1, 2)</em> and <em>B(0, -1) → b = -1</em>.
Calculate the slope:
Finally:
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Answer: 15
<u>Step-by-step explanation:</u>
small: 5 12 13
middle: __ 36 39
large: 45 108 117
Notice that to get from the small to the large, multiplied by 9
5(9) = 45 12(9) = 108 13(9) = 117
That is because the sides are proportional
To get from small to middle, multiply by 3
5(3) = 15 12(3) = 36 13(3) = 39
To solve it using proportions:
Method 1:
Convert the mixed number to the improper fraction:
Make the product:
<em>canceled 2</em>
Method 2:
<em>use the distributive property a(b + c) = ab + ac</em>