When X = 15, Y = 12
When X = 25, Y = 20
Answer:
The slope of this line is -2/7
Step-by-step explanation:
To find the slope between any two points, use the slope formula.
m(slope) = (y2 - y1)/(x2 - x1)
m = (3 - 1)/(-4 - 3)
m = 2/-7
m = -2/7
Slope = y2-y1 / x2-x1 = 48-12 / 32-34 = 36 / -2 = -18 answer
Answer:
Step-by-step explanation:Example 1: Find the equation of the line passing through the points (–1, –2) and (2, 7).
Step 1: Find the slope of the line.
To find the slope of the line passing through these two points we need to use the slope
formula:
( )
( )
So the slope of the slope of the line passing through these two points is 3.
Step 2: Use the slope to find the y-intercept.
Now that we know the slope of the line is 3 we can plug the slope into the equation and
we get:
y = 3x + b
Next choose one of the two point to plug in for the values of x and y. It does not matter
which one of the two points you choose because you should get the same answer in either
case. I generally just choose the first point listed so I don’t have to worry about which
one I should choose.
(–1, –2) → –2 = 3(–1) + b Multiply to simplify the problem.
–2 = –3 + b Solve for b and you will have the y-intercept.
b = 1
Answer:
81
Step-by-step explanation:
2(x - 25) = 112
x - 25 = 112/2
x - 25 = 56
x = 56 + 25
x = 81
