Use point-slope form.
But first let's find the slope.
(4, 2), (2, 4)
m = y2-y1/x2-x1
m = (4 - 2)/(2 - 4)
m = 2/-2
m = -1
So this is the slope, now we can plug this into the equation along with any point.
y - y1 = m(x - x1)
Where y1 is the y-value of the point, x1 is the x-value, and 'm' is the slope.
Let's plug in point (4, 2):
y - 2 = -1(x - 4)
This can be one of your options.
Distribute -1:
y - 2 = -x + 4
Add 2 to both sides:
y = -x + 6
This can be another of your options.
Add 'x' to both sides:
x + y = 6
This can be another of your options.
The correct answer is line TX and line QX are perpendicular.
Answer:
c≤8
Step-by-step explanation:
Let c be the number of copies that you can make
Each copy is 25 cents or .25
It must be less than or equal to 2 dollars
.25c ≤2.00
Divide each side by .25
.25c/.25 ≤ 2.00/.25
c≤8
2 would be the answer. Replace the x with the three and multiply that with the 2 and then subtract 4.
