Please help ASAP.I'll give you brainliest and 25 points.

Step-by-step explanation:

An equation to keep in mind is y=mx+b

m=

Any two coordinates would be good for this formula

For example you could use (2, -4) and (3, -7)

(3, -7) would be your second coordinate

(2, -4) would be your first coordinate

-7 =

3=

-4=

2=

Put the values into the formula and solve

= = = -3

m= -3

Now you have y=-3x +b

There are 2 ways to find b, but I will show the one that is the easiest to explain for me

1) substitute the x and y coordinates from one of the coordinates into the 'new' formula

I will be using the coordinate (2,-4)

y = -3x + b

-4 = - 3(2) +b

-4 = -6 +b

-4 +6 = -6 +6+b

2 = b

Your updated equation is y=-3x+2

The answer is the second option

I hope this helps!!!

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

answer:

125 yards

explanation:

75+50=125. that is my answer