2 years ago

Find the equation of the line. Use exact numbers. y = X +

Mathematics

1 answer:

puteri [66]2 years ago

5 0

Answer:

$y = \frac{3}{4} x - 2$

Step-by-step explanation:

Remmeber this:

$slope = \frac{rise}{run}$

The y-intercept is where the lone goes through the y-axis.

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If 1 cm represents 30 km on a map and colorado is shown by a 20cm by 15 cm rectangle on the map, what is the approximate actual

zubka84 [21]

Answer:

20*30km = 600km

15*30km = 450km

600km * 450km = 270000 km^2

Step-by-step explanation:

assuming 1cm --- 30km causes that 2cm --- 60km, 3cm --- 90km, 4cm --- 120km etc. Notice that number of km's is 30 times greater than the number of cm's on a map

using this logic, you calculate both real dimensions of Colorado by multiplying 20*30 = 600 km and 15*30 = 450km

Then we use a formula of an area of a rectangle $A=a\cdot b$ assuming $a=600km, \ b=450km$ and get $A=600\cdot 450=270000km^2$ which is an actual area of Colorado