<h3>
Answer:</h3>
y = (1/2)x - 5
<h3>
Step-by-step explanation:</h3>
Try the answers:
... -4 ≠ (1/2)·2 + 5
... -4 ≠ (1/2)·2 - 3
... -4 = (1/2)·2 - 5 . . . . . the third choice works
... -4 ≠ (1/2)·2 + 3
___
You can write the point-slope form equation and simplify.
... y -k = m(x -h) . . . . . . equation for line of slope m through point (h, k)
... y -(-4) = (1/2)(x -2) . . . filled in with your values, m=1/2, (h, k) = (2, -4)
... y = (1/2)x -1 -4 . . . . subtract 4, eliminate parentheses
... y = (1/2)x - 5 . . . . . simplified. (Matches the 3rd selection.)
Answer:
y = (3/4)x - 9
Step-by-step explanation:
The slope-intercept form of the equation of a straight line is y = mx + b.
Here we know x, y and m, but must find b.
Substituting 8 for x, -3 for y and 3/4 for m in the equation above results in:
-3 = (3/4)(8) + b, or (after multiplying all three terms by 4 to clear fractions):
-3 = 6 + b
Then b = -9, and the desired equation is y = (3/4)x - 9
Answer:
Answer is 1.6
Step-by-step explanation:
I hope it's helpful!
The percent of total discount is 16.4 %
<em><u>Solution:</u></em>
Given that,
<em><u>At first a price was decreased by 12%, then it was discounted again by an additional 5 %</u></em>
To find: Percent of total discount
Let "x" be the original price
<em><u>At first a price was decreased by 12%</u></em>
Therefore,
Discounted price = original price - 12 % of original price
Discounted price = x - 12 % of x
<em><u>It was discounted again by an additional 5%</u></em>
Therefore,
Discounted price = 0.88x - 5 % of 0.88x
<em><u>Thus the percent of total discount is:</u></em>
Thus the percent of total discount is 16.4 %
