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D. y = -3 x + 1 The slope is -3 and the y intercept is +1.
Thanks, you think you could help me with some more?
take one dot for example (1;-2) (x=1;y=-2) then input it into the equations the answer is D
Which equation represents the graph of the linear function? A. y = −4x + 4 B. y = −4x − 4 C. y = 4x + 4 D. y = 4x − 4
do as i told you, take one dot from the graph (x;y) then put x into the equations and see if it equals y
(-1;0) for example input -1 into the equations and see where you get y = 0
the answer is c
where do i input the -1?
into the equation put -1 instead of x
i feel stupid, i kept putting the -1 in the y
I have just one more for you if you dont mind, i know how to solve the others but this one is different
x is horizontal axis y is vertical axis a dot in the graph looks like this: (x;y) x on the left side and y on the right
Complete the equation of the graphed linear function. Write the slope in decimal form. y = x +
hold on wait
take two dots from the graph here we have (5;0) and (0;4) an equation of a slope looks like this: y = ax + b your goal is to find a and b this is how we do it: take a dot where y = 0 which in this case is the second dot (0;4) from this we have: a*0 + b = 4 b = 4 then we take the first dot (5;0) from this we have: a*5 + 4 = 0 5a = -4 a = -4/5 = -0.8 and you're done. now input a and b into a slope equation y = ax + b answer is: y = -0.8x + 4
by the way, it's not necessary to take a dot where y = 0, but if you can do that then you should because it's simpler this way
That was an awesome explination! I've been stuck on these questions for 2 hours and now i get it, thanks so much