Method 1.
Use 
Method 2.
Use distributive property: (a + b)(c + d) = ac + ad + bc + bd
Answer:y=\frac{1}{2} x-4
Step-by-step explanation:
Slope intercept form of the equation of a line is y = mx+b where m is the slope and b is the y intercept. Plugging in 1/2 for m and -4 for b gives y = 1/2x + (-4) then simplifying adding a negative means subtracting.
Punchline Algebra is carefully sequenced book to help student understand problems which otherwise take a lot of time and effort to understand. An example is that "What can we say about a monster with five legs", and the answer could be <span>"We can say about a monster with five legs that the monster have a pant or trouser that fits him like a glove."
The punchline in this is that pants fit the monster like a glove, and this highlight the figure "five" for a student in an easy fun way.
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Answer:
A.20
Step-by-step explanation:
If the area for the scale drawing is 20 and the scale factor is 1:2 (which means its doubled) then the actual area would be 20. This would keep the 1:2 ration accurate. 1:2 = 10:20
