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anonymous
 one year ago
What is the equation of a line that passes through points (0, 4) and (4, 8)?
y = 2x + 4
y = 2x  4
y = 3x + 4
y = 3x  4
anonymous
 one year ago
What is the equation of a line that passes through points (0, 4) and (4, 8)? y = 2x + 4 y = 2x  4 y = 3x + 4 y = 3x  4

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ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2start by finding the slope

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1Well first find the slope, using the following formula: \[m = \frac{ y_{2}y _{1} }{ x _{2}x _{1} }\] where your coordinates represent \[(x_1,y_1)~~\text{and}~~(x_2,y_2)\] Once you manage to get that, plug in m and your first coordinates in the point  slope form: \[yy _{1}=m(xx _{1})\] do some little algebra and eventually you will have slope  intercept form \[y=mx+b\]

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2dw:1440081520066:dw

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1If you find the slope you can also eliminate two of the options right away

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2do you have 5 mnts to review the slope quick ? it keeps showing up in every problem, never stops

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1dw:1440081878302:dw a quick image as well

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2slope is a "number" that gives you some idea about how "steep" a line is

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2in our present problem, we're given two points, connect them : dw:1440081952473:dw

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2suppose you're walking from left side : dw:1440082023122:dw

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2and want to climb that ramp, is it easy or difficult ?

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2ofcourse it is difficult because it is too much steep (slope is too much)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2good, "how much" steep it is ?

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2see, "steep", "very steep", "mind blowingly steep" are not mathematical words we want to quantify the steepness, so we invent "slope"

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.2slope = rise / run look at the ramp, for every "1 foot" that you want to go to the right, you need to climb up a height of "3 feet" dw:1440082367603:dw