F(x)=-1x-1
1) Pick 2 points on the line (i chose (-4,3) and (3,-4)
2) Find slope of the line using the 2 points. (work below)
3) Find y-intercept, which is the point where y-axis and the line cross (y-intercept is -1).
4) Place both slope and y-intercept into slope-intercept form, y=mx+b (m=slope and b=y-intercept.)
5) Change y to f(x) (meaning function of x).
Work:
3-(-4)/-4-3=3+4/-4-3=7/-7=-1
y-intercept equals -1 also.
y=mx+b
y=-1x+(-1)
y=-1x-1
f(x)=-1x-1<---Answer
Ok ratio and proportion
realheight:shadow=15:20
slide shadow=16
therefor find realheightslide
15:20=realheightslide:16
simplify
3:4=realheight:16
fractionfy
3/4=realheight/16
multiply both sides by 16
48/4=realheight
12=realheight
aswer is 12 feet
5 (m - 1) = -25 Use the Distributive Property
5m - 5 = -25 Add 5 to both sides
5m = -20 Divide both sides by 5
m = -4
Answer: The length of radius of a circular pool is 7 meters
Step-by-step explanation:
Given that the circumference of a circular pool cover is about 88 meters
To find the length of radius
As we know circumference of a circle is given by
where C is circumference , and r is radius of the circle
Now as according to question we have
Hence,the length of radius of a circular pool is 7 meters
Answer:
4.5 x 2.8
= 12.6
The temperature represented is -12.6.