Answer:
4y = -x + 9
Step-by-step explanation:
2y = 8x - 6
Divide through by 2:-
y = 4x -3 so the slope of this line = 4
Slope of the line perpendicular to this = -1/4
So using the point/slope form of an equation of a line and the point (-3,3) we have:-
y - 3 = -1/4(x - -3)
y = -1/4x - 3/4 + 3
y = -1/4 x + 9/4 Multiply through by 4:-
4y = -x + 9
Answer:
80 m
Step-by-step explanation:
First convert km/h to m/s.
24 km/h × (1000 m / km) × (1 h / 3600 s) = 6.67 m/s
Distance = rate × time
d = 6.67 m/s × 12 s
d = 80 m
Answer:
y-2=0
Step-by-step explanation:
In y=mx+b
m=(y2-y1)/(x2-x1) [2]
Or another way of thinking about it is rise over run.
define point (-1,2) as x1,y1
define point (5,2) as x2,y2
substitute into formula [2]
m=(2-2)/(5-(-1))
We know that 2-2=0 therefore the slope (m) is 0
y=0x+b
Or simply
y=b
to solve for b we substitute into the formula any of the points
2=b for y1
or 2=b for y2
b=2
therefore y=2
to convert it into general form make the equation equal 0
y-2=0
Answer:
I think it's 7.5 correct me if i'm wrong
Step-by-step explanation:
7.5 is half of 15
Use the midsegement theorem
(x-4.5)+(x-4.5)+(x-4.5)
3(x-4.5)
Those 2 expressions are equivalent because 3x is the same as x+x+x so (x-4.5)+(x-4.5)+(x-4.5) should be the same as 3(x-4.5)