Start with y=mx+b
B is your y intercept
m is your slope
The points you have are (-1,4) and (1,-2)
To find the slow you Do Y2-Y1/X2-X1
(-2-4)/ (-1-1)
-6/-2
your m is 3
Now you go back to the equation of a Line y=mx+b
to find b (your y intercept) take on of the two points, and substitute it's y value in the equation Let's take (1,-2)
Y=mx+b
-2=3(1)+b
-2=3+b
b=-5
you now know that
b=-5
m=3x
The equation is
y=3x-5
Answer:
$70
Step-by-step explanation:
$120-$50=$70
Tim needs to save 70 more dollars to buy a computer.
Answer: 1
Step-by-step explanation:
Answer:
135 square centimeters.
Step-by-step explanation:
The area of a triangle is given by the formula:

Where b is the base length and h is the length of the vertical height.
From the triangle, we can see that the base is 18 and the vertical height is 15. Thus:

Multiply:

The area of the triangle is 135 square centimeters.