Answer:
(2, 0)
(0, -2)
Step-by-step explanation:
A linear function has the form y = Ax + B
where A is the slope, and B is the y intercept
we are told the slope is 1,
y = (1)x + B
now we can plug in the x and y from the known point
2 = 4 + B
B = -2 so the y intercept is (0, -2)
y = x - 2 is the function
The zero occurs when y = 0
0 = x - 2
x = 2 so the zero is (2, 0)
Answer:
false statement
Step-by-step explanation:
5+x^2=2x^2+13
5+x^2-2x-13=0
-8+x^2-2x^2=0
-8-x^2=0
-x^2=8
x^2=-8
this statement is false for any value of x because the power function with an even exponent is always postive or 0
Answer:
107/10
Step-by-step explanation:
If its set as 10 7/10
10 x 10 = 100 + 7 = 107
107/10
It seems correct to me- i don’t see anything wrong so far
Answer:
x = 2√30, y = 2√21
Step-by-step explanation:
You can create the following equations:
(1) from the left triangle with sides x, y and 6:
y² + 6² = x²
(2) from the right triangle with sides y, 14 and... lets call it z:
y² + 14² = z²
(3) from the big triangle:
x² + z² = 20²
(4) Combine (2) and (3) to eliminate z:
x² + y² + 14² = 20²
combine (1) and (4) to eliminate x:
y² + 6² + y² + 14² = 20²
simplify
2y² = 20² - 6² - 14² = 168
y² = 84
y = √84 = 2√21
x² = y² + 6² = 84 + 36 = 120
x = √120 = 2√30