Make it into slope intercept form which is y=mx+b
subtract x ffrom both sides
2y=-5-x
divide by 2
y=-1/2x-5/2
y=mx+b
m=slope
b=y intercept or where the line passes through the y-axis
now one way is to graph points by subsituting
if x is 0 then y=-5//2
if x=1 then y=-3
if x=-5 then y=0
another way is to find out where the line passes though the y and x axis or the y and x intecepts respectively
the y intercept is when x=0
the x intecept is when y=0
so set each to zero and solve
if x=0
y=-1/2(0)-5/2
y=-5/2
the line passes throught the y axis at -5/2, plot the point (0,-5/2) on the y axis
then set y to zero
0=-1/2x-5/2
add 5/2 to both sides
5/2=-1/2x
multiply -1
-5/2=1/2x
multiply by 2
-5=x
therefor the line passes through tthe x axis at (-5,0)
then draw the line between the 2 points
here is the graph
<span>Twice a number is equal to negative four :
2n = -4
answer
</span><span>2n = -4
last one is your answer</span>
Answer:
1. 9.18
2. 9.3
3. 9.376
4. 9.51
Step-by-step explanation:
Answer:
4t miles per hour
Step-by-step explanation:
Distance refers to the amount of space an object can cover within a period of time. It can be calculated by multiplying speed and time.
Distance= speed × time
Speed is the rate of movement of an object from one place to another.
Speed= Distance/Time.
Time= distance/speed.
If Katie walks at the rate of 4miles per hour.
Her total distance in the hours is d
Total distance= speed× time
Her speed=4miles per hour
Time= t
Katie's total distance=4 miles per hour× t
=4t miles per hour
The formula for exponential form is:
e^x = y
Where, y in this case is 1800, e is exponential, and we
are to find e^x.
e^x = 1800
To find for x, we have to multiply both sides with the
natural log, ln.
ln (e^x) = ln (1800)
x ln e = ln (1800)
<span>ln e = 1 and by using
the calculator,</span>
x = 7.496 = 7.5
<span>Therefore the exponential form of 1800 is e^7.5</span>
<span>ANSWER: </span>