You can make them have the same denominator and then compare
so as you can see,
Answer:
Options a, d and e
Step-by-step explanation:
We check the validity of each of the options.
Kindly note that we can express the equation fully and we have;
y-3 = -2x-10
y = -2x -10 + 3
y = -2x -7
So let’s now evaluate the options.
(a) Insert the value of x at this point, if it gives the value of y, then it’s on the line
the value of x to insert is -5 here.
Thus ; y = -2(-5)-7 = 10-7 = 3
since y is 3, then it is on the line
(b) same as a
insert x = 5
y = -2x-7
y = -2(5) -7
y = -10-7 = -17
This is definitely not on the line as the value of y gotten does not correlate with what was given
c. To get this , compare with the standard form of
y = mx + c
where m is slope
Here our m is -2 , so this is definitely wrong
d) From above , we can see that this is correct
e) compare this with y = mx + c
c is our intercept and this is equal to -7 which makes this option also correct
Using the intersecting chord theorem:
15 x 2 = 5 x n
Simplify:
30 = 5n
Divide both sides by 5:
n = 30/5
n = 6 m
8 x n+8 = 16 x n+2
Simplify:
8n +64 = 16n +32
Subtract 8n from both sides:
64 = 8n +32
Subtract 32 from both sides:
32 = 8n
Divide both sides by 8:
n = 32 /8
n = 4
Answer: m = -1/3
Step-by-step explanation:
1.5x + 4.5y = 18
convert to the formula y = mx + b we have
4.5y = -1.5x + 18
y = (-1.5/4.5)x + 18/4.5
y = -1/3x + 12
B. is the answer if you look closely
