Algebra HOMEWORK HELP?! Please & thanks.
Thanks! If you answer these correctly I will love you forever. 1. If the slope of a straight line is -5 and if X (the variable on the horizontal... Show More
Most Helpful Opinion
1-) cBecause, a slope of "-5" means y = -5x (plus a constant, but that is irrelevant right now).Insert "10" to the position of x. What do you get?y = -5(10)y = -50Decreases by 50.2-) c (this time you insert the variable to y, but everything else is same)3-) d (same tactic)4-) eBasically, y increases by 4850 - 1730 = 3120 when x increases by 500 - 100 = 400.If y increases by 3080 and x increases by 400, then the slope of the line is 3120 / 400 = 7.8Meaning that the equation should look like this:Y = 7.8C + k (k is your y-intercept - the point where the line intersects with the vertical axis - and that is not given in the question so I can't tell you what k is, but we might not need it at all.)None of the answers have the "7.8C" expression, so the correct answer must be "e - none of the above".
What Guys Said 5
1 d2 a3 c4 edetailed explanation to follow
Assuming the first three questions want the new line to have the same slope as the original line:1) the slope intercept form or formula is y= mx+b. Remember slope is rise over run. Assuming the line starts at the origin (0,0), y= -5*10+0; y= -50. m is the slope; x is the x-axis movement and y is the y-axis movement; b is the starting point for the line, normally anywhere on the y-axis.2) Do the same thing in number 1.3) Do the same thing in number 2.4) y=mx+b; (y2-y1) / ( x2-x1)If you need more help, please ask.
Well, I wish you and your sisters would stop blowing me off for tutoring. Maybe you'd get these right if the 3 of you came. Haha I said blowing and came.
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