How do I find slope?
Depends on the situation. Do you have a specific problem you need help with?
Slope = \(\large\frac{change\ in\ y}{change\ in\ x}\) or... \(\large\frac{rise}{run}\)
Or...say you have this equation of a line: y = 2x + 1 2 = slope Cause... y= mx + b m = slope
m= y^2-y^1 / x^2-x^1 (x^1 =/ x^2)
mx=b is your slope
if I'm going to a hotel it costs $100 for 5 days you stayed there and $200 for 10 days you stayed there. And how do I turn that into a linear function?
Create these two points: (5,100) and (10,200)
Use the slope formula \(\large slope=\Large\frac{y_2-y_1}{x_2-x_1}\)
(5,100) and (10,200) \((x_1,y_1)\) and \((x_2,y_2)\)
Plug in and solve
That's the first step
Slope = 20 ?
@StudyGurl14
correct
Next, plug it into this equation: y = mx + b y = 20x + b Plug in the values of x and y from one of the coords into the formula and solve for b. Let's use (5,100) (100) = 20(5) + b Solve for b @Conqueror
100 = 100 + b ???
@StudyGurl14
right. so b = 0 Plug it back into the equation y= 20x + b y= 20x + 0 So...the equation is y=20x
So that's all? That's the Linear function? y = 20x? @StudyGurl14
yep. that's all
Thanks a lot and congrats on 99 :D
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