Can someone answer this for me :)

y = -2x + 3

Step-by-step explanation:

y = mx + b

slope = m

m = y2 - y1/x2 - x1

-3 - 3/3 - 0 = -6/3

m = -2

y = -2x + b

b = y-intercept

b = 3

y = -2x + 3

Slope = -2

y intercept = 3

Explanation:

Use the two points shown in the slope formula

m = (y2-y1)/(x2-x1)

m = (-3-3)/(3-0)

m = -6/3

m = -2

The slope of -2 can be thought of as -2/1

slope = -2/1 = rise/run

rise = -2 and run = 1

Each time we move down 2 units, we move to the right 1 unit.

The y intercept is b = 3 since this is the location where the line crosses the y axis.

We go from y = mx+b to y = -2x+3 as the final answer

To check the answer, let's plug in (x,y) = (0,3)

y = -2x+3

3 = -2(0)+3 ... replace x with 0 and y with 3

3 = 0+3

3 = 3 ... true equation

Now let's plug in (x,y) = (3,-3)

y = -2x+3

-3 = -2(3)+3 ... plug in x = 3 and y = -3

-3 = -6+3

-3 = -3 also true

Because both points make the equation y = -2x+3 true, this confirms we have the correct equation.

2 & 7

step-by-step explanation:

he climbs 300 ft/hr at a constant rate. the peak is at 1,500 ft.

when going up, he reaches 600 ft in 2 hours. remember, that he is going in a constant rate. divide 600 with 300:

600/300 = 2

assuming that he takes the same route back (meaning that it's a 1500 ft route back, you can solve.

note also that you are solving when he gets back to 600 ft after he reaches the peak.

first, find the amount of hours it takes to get up the peak. divide the total amount (1500), with the ft/her (300) to get the amount of hours (x):

1500/300 = x

x = 5

it takes jamie 5 hours to get up. now, he is returning down, and reaches 600 (his current destination). remember that he climbs at a constant 300 ft/hr. divide 600 with 300:

600/300 = x

x = 2

now add the two numbers together.

x = 5 + 2 = 7

jamie takes 7 hours to go up the mountain and reach his current position when descending.

(total amount/constant rate) = (time).

remember that it is a constant rate, so in total, when he gets back down the mountain, it will take the same amount of time as when he goes up. the total amount for the round trip is: 5 + 5 = 10.

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answer: 7

step-by-step explanation: