Use the equation y=mx+b
Written Question
m=slope
b=y-intercept
so, y=-3x+1
slope=-3x
y-intercept=1
the first picture--
you know the y-intercept is 2 right? sp y=x+2
slope is rise over run. Take two points
(2,0) and (3,1)
to get from (2,0) to (3,1) you go down one (-1) and right 3 (+3)
rise over run would be -1/3!!!!!!!!
y=-1/3x+2
the second pic--------
positive is when the line is pointing right
negative is when the line is pointing left
no slope is when it is a straight up or down line
undefined is when its not straight (curvy)
POSITIVE <3
Hope this helped, ask me for any more questions <3
Ok, since you know what y equals in the second equation (5x), plug that in, in the first equation. So you have 4x + 2(5x) = 7. Then solve for x
Answer:
b^(m-n)
Step-by-step explanation:
The height of an oak tree (which depends on the age of the tree) is 100
Answer:
If adding, 43.2.
If subtracting, -34.2.
If multiplying, 174.15.
If dividing, 8.6.
Step-by-step explanation:
Addition: Line up and add.
Subtraction: Add the first number and opposite of the second. 4.5+(-38.7)=-34.2.
Multiplication: Multiply as normal, count up how many decimal places are in the factors (2), and add that to your answer, 174.15.
Division: Turn both number into whole numbers by multiplying by 10. Then divide 387/45= 8.6.
CAN EXPLAIN FURTHER