Answer:
C
Step-by-step explanation:
You can use the formula y=mx+b
f(x) is the same as y
m=slope
b=y intercept
We know that the slope is -2 so which answer has -2 as b? (Which one has a -2 before the x?)
Y Intercept is where the line crosses though the y axis. The point of the y intercept will ALWAYS have 0 as x. So (0,4) is the y intercept. You could also say 4 is the y intercept. Which one has 4 as b? (Which one says +4 after -2x)
The only answer that matches is C.
I hope thay made sense.
Answer:
5 : 9
Step-by-step explanation:
2x + y = 1 . . . (1)
3x - y = -6 . . . (2)
(1) + (2) => 5x = -5 => x = -5/5 = -1
From (1), 2x - 1 = 1 => 2x = 1 + 1 = 2 => x = 2/2 = 1
x = 1, y = -1
Step-by-step explanation:
x = 2 is, as you can see, parallel to the y-axis.
perpendicular to this (= crosses the original line in an angle of 90 degrees) is then a line parallel to the x-axis.
that means y is constant. all points on that line will have the same y value.
and we know one point already : (3, -2)
so all points of the perpendicular line will have y = -2
and that is the equation of the perpendicular line :
y = -2
Answer:
Can you type out the question? it is hard to read and the angle makes it harder
Step-by-step explanation:
