Answer:
line1:y=2x+3
Gradient1=2
Let line2 be the line passes through (-4,1)and perpendicular to line1.
Because line2 and line1 are perpendicular, (gradient of line2) (gradient of line1) =-1
Gradient of line2=-1/2
Equation of line2:y-y1 =m(x-x1)
:y-1 =(-1/2)[x-(-4)]
:(y-1)(-2)=(x+4)
:-2y+2 =x+4
:-2y+2-x-4=0
:-x-2y-2 =0
:x+2y+2 =0
*notes:gradient=m
To find the constant variation, solve for only one hour (in this case).
Divide 100 with 2
100/2 = 50/1
Each hour is 50 miles driven, so your constant variation is 50 mph
Answer:
+5 and -3
Step-by-step explanation: It gained 5 in value which is +5. It loses 3 in value which is -3.
<h2><u>Answer</u><u> </u><u>:</u></h2>

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<h2><u>To </u><u>find </u><u>:</u></h2>
- Total number of Floors in dool house
<u>➜</u><u> </u><u>Therefore</u><u> </u><u>,</u><u> </u><u>Total</u><u> </u><u>number</u><u> </u><u>of </u><u>floors</u><u> </u><u>can </u><u>be </u><u>find </u><u>out</u><u> </u><u>by </u><u>dividing</u><u> </u><u>the </u><u>total</u><u> </u><u>height</u><u> </u><u>of </u><u>dollhouse</u><u> </u><u>by </u><u>the </u><u>length</u><u> </u><u>of </u><u>one </u><u>floor</u>


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Answer:
(11/4) is the slope
Step-by-step explanation:
1) Subtract the second y value (-9) by the first y value (2) in the coordinates. This equals 11.
2) Then, subtract the second x value (-3) by the first x value (1) in the coordinates. This equals 4.
3) Divide the answer you get for step one by the answer for step 2 and that's your slope. 11/4