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This is how you proceed for slope-intercept equations. From the graph, read off the y-intercept (=10). Read off the slope (about 15). Check the 4 options to see which one satisfies both conditions. If you can use help reading off the slope and intercept, please post.
what do you mean
Are you familiar with how to find the y-intercept of a given equation in slope-intercept form?
An equation y=mx+b is in slope-intercept form, where m=slope and b=y-intercept. |dw:1357747417191:dw|
From the given graph, can you spot the y-intercept?
would it be 1?
no. Y-intercept is where the curve (line in this case) intersects the y-axis. Can you read it off?
so the y intercept is where you have the curved line?
|dw:1357748329385:dw| Can you figure out the y-intercept of the given graph?
ohh . okay . yes
can you do the rest now?
What is the approximate slope and what is the intercept?
isnt the intercept 10 though?
Right, y-intercept is 10. Did you find the slope?
would it be 4?
would the answer be D?
Your answer D is correct. You have eliminated A and B because the y-intercepts there are zero. Good job. Between C and D, the difference is the slope. The graph shows that y increases from 10 to 14 between 0 and 1. This implies a slope of (14-10)/(1-0)=4. Therefore answer D is correct.
thank you so much ! (: