Answer:
Step-by-step explanation:
So we have the equation:
Subtract 18 from both sides. The left cancels:
Multiply both sides by -2. The left cancels again:
Take the square root of both sides:
Since we're taking the square root, we need to use plus-minus.
Evaluate:
So, the solutions are -6 or 6.
Answer:x=
−9
/2
y^2+928
Step-by-step explanation:
Add angles I guess but math
Answer:
a.) (0,4) b.) (-4,0)
Step-by-step explanation:
a.) Let x=0 and solve for y: y=0+4=4. Since we let x=0 the first number will be 0 and we found y to be 4, so our coordinates are (0,4)
b.) Let y=0 and solve for x: 0=x+4, x=-4. Since x=-4 our first number is -4, since y is 0 our second number is 0, so our coordinates are (-4,0)
Hope this helps!
Answer:
(5x+3)/2
Step-by-step explanation:
f(x)=(2x-3)/5
f(x)=y
y=(2x-3)/5
interchanging role of x and y
x=(2y-3)/5
5x=2y-3
5x+3=2y
y=(5x+3)/2
the inverse if f(x) = (5x+3)/2
