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Mathematics 13 Online
OpenStudy (anonymous):

PLEASE HELP ME

OpenStudy (quin100):

with what?

OpenStudy (anonymous):

OpenStudy (anonymous):

@acxbox22

OpenStudy (anonymous):

on the picture

OpenStudy (jdoe0001):

notice the slope = rise/run the cost, is over the y-axis, thus the RISE and the minutes over the x-axis, thus the RUN for every 0.10 in rise there's 1 in run

OpenStudy (acxbox22):

the equation is y=0.1x+20 y intercept is 20 and slope is 0.1 when we look at the graph thr price for 10 minutes is $21 because y=0.1(10)+20 y=1+20 y=21 so look at the graph where the line intersects the points (0,20) and (1,21)

OpenStudy (jdoe0001):

also notice the starting cost her plan charges right off the start, $20 so before she even uses 1minute, she has to pay $20 or at 0 minutes, x =0, y = 20 <--- y-intercept

OpenStudy (anonymous):

x or y ? @acxbox22 @jdoe0001

OpenStudy (acxbox22):

there are 2 more options below you know

OpenStudy (jdoe0001):

so... with that info what's the slope? what's the y-intercept? then get the equation, and plot away

OpenStudy (anonymous):

i think y or x

OpenStudy (acxbox22):

graph y is right because the lines intersect the points listed above :)

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