Can someone give me an example on how to do number 18. you !

r=5

Step-by-step explanation:

The gradient(m) can be found using (y2-y1)/(x2-x1)

if we make the substitution given the points in the question, we find

(r--4)/(-5--3)

this simplifies to

(r+4)/-2

since we know that m= -9/2, we can make an equation

(r+4)/-2=-9/2

multiply both sides of the equation by -2

r+4=9

r=5

answer: the answer is 30 miles per hour.

ft/s -> mphmph = ft/s 1.466667mph = 44 divided by 1.466667mph = 30.00000

- r3ktforgood ☕

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )