Answer: y = 3x-8
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Explanation:
The slope is 3, so m = 3
The given point is (3,1) meaning x = 3 and y = 1. The x coordinate is always listed first in an ordered pair. The general format is (x,y)
We'll use m = 3, x = 3 and y = 1 to find the y intercept
y = mx+b
y = m*x+b
1 = 3*3+b ... plug in m = 3, x = 3 and y = 1
1 = 9+b
1-9 = 9+b-9 ... subtract 9 from both sides
-8 = b
b = -8
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So we're given m = 3 as the slope and we just found that b = -8 is the y intercept
So y = mx+b updates to y = 3x-8. This is the final answer.
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Side Notes:
* The slope of 3 means rise/run = 3/1 indicating each time we go up 3, we move to the right 1
* The y intercept -8 is the location on the vertical y axis numberline where the graph crosses. The point (0,-8) is on this line.
Answer:
8 is the right answer
Step-by-step explanation:
in triangle swu,, wT bisect and perpendicular on su
so the triangle is isosceles triangle
therfore,Sw =, 8
The cube root of 81 is 4.32674871092
Answer: y= 25+2.5x
Step-by-step explanation:
Let a = base pay , b = additional amount per newspaper.
Given: Last week, Pedro delivered 5 newspapers and earned $37.50.
i.e. 37.50=a+5b (i)
This week, he delivered 20 newspapers and earned $75.
i.e. 75=a+20b (ii)
Eliminate (i) from (ii)
37.50=15b
, i.e. additional amount per newspaper= $2.5
Put b= 2.5 in (i)
, i.e. base pay = $20
Let x= Number of newspapers Pedro delivers.
y= Earnings he receives in dollars.
y= 25+2.5x will be the required function.
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Actually Welcome to the Concept of the Angles.
11) Vertically Opposite Angles, 6x= 30 , thus x= 5
12) Adjacent Angles, 4+5x+x+2 = 180
= 6+6x= 180 => 1+x= 30 , x= 29
13) Right Angle, 2x+1+x+2=90 ==> 3x+3=90 => x+1= 30
=> x=29
14) Right Angle, 3x+1+4+2x = 5x+5= 90 ==> x+1 = 18
=> x=17
15)Vertically Opposite Angles are same,
y+23= 63 , thus y= 63-23 ==> y= 40
2x-17 = 234 ( remaining angle after subtraction of 63 for two times)
2x= 251 , thus x= 125.5
16)Linear pair, 47-2x+x^2+32 = 180
=> 79-2x+x^2= 180
= x^2-2x = 101
=x(x-2) = 101
17)