Answer:
Step-by-step explanation:
this equation is written in y = mx + b form
m = slope
b = the y intercept
so if we rearrange the equation to
y = -23x -6
the slope is -23
the y intercept is (0, -6)
slope = 3
y-intercept = 1
explanation
slope, m = (y2-y1)/(x2-x1)
= (19-10)/(6-3)
= 9/3
= 3
equation of a line is y = mx + c
at point (3,10)
=> 10 = 3*3 + c
=> c = 10-9
=> c = 1
finding y-intercept when x = 0
y = mx + c
by putting the values we have
y = 3*0 + 1
y = 1
I have edited my answer
If you multiply the scale by 2 you would get 2 cm:16 km. So the answer would be 2 cm
Answer:
A. 20
Step-by-step explanation:
To solve this you must know that the angles marked are vertical angles and are congruent. So, you should set them equal to each other
x+40=3x
you would subtract x from both sides
40=2x
and then divide 2 from both sides
20=x
hope this helped!
Answer:
The equation of the line is;
y = -x + 2
Step-by-step explanation:
Here, we want to find the equation of a line which is perpendicular to the given line and passes through the given point.
Mathematically;
If two lines are perpendicular, then , the slope of the two lines when multiplied by each other equals -1
The given line is;
y = x + 1
let’s compare this with the standard form which is y = mx + c
In the standard form, the coefficient of x is the slope. In this case, the coefficient of x is 1 and thus this is our slope
So the slope of the second line will be;
since m1 * m2 = -1
and m1 = 1
m2 = -1/1 = -1
The slope of the second line is -1
Now to get the equation of the second line; we use the point slope form
That would be;
y-y1 = m(x-x1)
The point (x1,y1) = (1, 1) and m = -1
Thus;
y-1 = -1(x -1)
y-1 = -x + 1
y = -x + 1 + 1
y = -x + 2 or simply y = 2-x
