+7 Can anyone answer these questions I cannot figure them out. Thx 1)State the coordinates of the y-intercept for the line given the equation y = 4x - 3. 2)If a line passes through the points (0, -3) and (4,0) determine the slope of the line. 3)Solve this inequality for x: 5x - 4 < 3x + 2 4)Solve this equation for x: x^2 + 3x - 40 = 0 5)Multiply and simplify: 5(x + 3)(2x - 1). 6)Simplify: x(x + 2) - 3(x^2 + 2x)
+128475 I'll help with a few, but I'm not going to give you the answers...I'll show you how to arrive at the answer for yourself.......deal???
1) When we have the form, y= mx ± b, the y intercept is given by (0, ±b). Thus, if I have the equation y = -5x - 4, the y intercept is just (0, -4)...that should help you get started.....
2) To find the slope, subtract the y coordinates in any order. Then subtract the x coordinates in the same order. Then, put the first result over the second....that's the slope !!!! For example, suppose we have (3,1) and (6,9). Subtract the y coordinates (9 - 1 = 8). Then subtract the x coordinates in the same order (6 - 3 = 3). Then the slope is 8/3.......
3) In equalities, I like to get the x's on the left side and everything else on the right. So. if I had, 5x - 5 < 2x + 9, I would first subtract the 2x from both sides giving 3x - 5 < 9. Now, add 5 to both sides and we have 3x < 14. Now divide both sides by 3 to get "x" on the left side by itself, and we have.......x < 14/3........
Work on these first and tell me how you're doing in a post.....I'd rather answer any questions you might have about these than going any further......
+118609 Hi Md,
That really is too many questions to put in all at once.
You have a go at them and if you really can't do them enter them one question per post onto the forum.
Try and tell us why you are having problems with them too or show us what you have attempted.
We are here to to help you learn, not to do all you home work for you.
Thank you
Melody
+128475 I'll help with a few, but I'm not going to give you the answers...I'll show you how to arrive at the answer for yourself.......deal???
1) When we have the form, y= mx ± b, the y intercept is given by (0, ±b). Thus, if I have the equation y = -5x - 4, the y intercept is just (0, -4)...that should help you get started.....
2) To find the slope, subtract the y coordinates in any order. Then subtract the x coordinates in the same order. Then, put the first result over the second....that's the slope !!!! For example, suppose we have (3,1) and (6,9). Subtract the y coordinates (9 - 1 = 8). Then subtract the x coordinates in the same order (6 - 3 = 3). Then the slope is 8/3.......
3) In equalities, I like to get the x's on the left side and everything else on the right. So. if I had, 5x - 5 < 2x + 9, I would first subtract the 2x from both sides giving 3x - 5 < 9. Now, add 5 to both sides and we have 3x < 14. Now divide both sides by 3 to get "x" on the left side by itself, and we have.......x < 14/3........
Work on these first and tell me how you're doing in a post.....I'd rather answer any questions you might have about these than going any further......
