What is the equation for points (-2,-4) and (4,-1) ?

Step-by-step explanation:

The question is

Find the equation of the line for points (-2,-4) and (4,-1)

step 1

Find the slope

The formula to calculate the slope between two points is equal to

we have

(-2,-4) and (4,-1)

substitute

step 2

Find the equation if the line in point slope form

we have

substitute

step 3

Convert to slope intercept form

we have

isolate the variable y

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

i think it is 18

step-by-step explanation: