Linear equations

kywildcat1223

New member
Joined
Apr 3, 2011
Messages
1
I am having problems wiht linear equstions. Can anyone help me solve the following problems?

(-7,-8) and (-2,-6) The equation of the line in slope intersect is?



If you have a tree that is 7 feet tall and produces 24 pounds of fruit and a tree that is 12 feet tall and produces 48 pounds of fruit, find the form of an equation of the line through the 2 ordered pairs. And give the predicted amount of fruit from a tree that is 18 feet tall and 20 feet tall . How tall would a tree be that produces 88 pounds of fruit?
 

tkhunny

Moderator
Staff member
Joined
Apr 12, 2005
Messages
9,824
One question per post, please.
Show ANY work with each post, please.

\(\displaystyle SLOPE = \frac{rise}{run} = \frac{\Delta y}{\Delta x} = \frac{y_{1}-y_{0}}{x_{1}-x_{0}}\)
 

mmm4444bot

Super Moderator
Staff member
Joined
Oct 6, 2005
Messages
10,255
kywildcat1223 said:
The equation of the line in slope intersect is?

The correct name is Slope-Intercept form. Have you seen it?

y = mx + b

tkhunny showed you how to find the slope m (it's the difference of the y-coordinates divided by the difference of the x-coordinates).

Please show us what you get for m.




If you have a tree that is 7 feet tall and produces 24 pounds of fruit and a tree that is 12 feet tall and produces 48 pounds of fruit, find the form of an equation of the line through the 2 ordered pairs. And give the predicted amount of fruit from a tree that is 18 feet tall and 20 feet tall . How tall would a tree be that produces 88 pounds of fruit?

Let the height of the trees be the x-coordinate.

Let the pounds of fruit be the corresponding y-coordinate.

Can you show us the two ordered pairs in this exercise?

If so, find the slope.

We can go from there. 8-)
 
Top