Answer:
Step-by-step explanation:
Hi there!
Slope intercept form: 
where m is the slope of the line and b is the y-intercept (the value of y when the line crosses the y-axis)
<u>1) Find the slope (m)</u>
where the two given points are 
and 
Plug in the given points (2,8),and (8,2)
Therefore, the slope of the line is -1. Plug this into :
<u>2) Find the y-intercept (b)</u>
Plug in a given point and solve for b
Add 2 to both sides
Therefore, the y-intercept is 10. Plug this back into :
I hope this helps!
Step-by-step explanation:
when multiplied together, the gradients of the 2 graphs should equal -1 (of they are perpendicular).
x-7y=4
-7y= -x + 4
y= -1/7 x + 4/7
21x+ 3y=11
3y=-21x+11
y=-21/3 x + 11/3
-21/3 * -1/7 = 1
when multipled together, the 2 gradients dont equal -1 therefore they are not perpendicular
unless I've made a mistake with the signs at some point haha
Answer:
See below
Step-by-step explanation:
- 6x² - 18 =
- 6*x² - 6*3 =
- 6(x² - 3)
Answer:
B the line goes down so its a negative gradient
and you do rise which is -1 over run which is 3
Answer:
-25/3
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer/how I got this answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
