Answer:
No y
Step-by-step explanation:
Since
x=-1
is a vertical line, there is no y-intercept and the slope is undefined.
Answer:
a and c
Step-by-step explanation:
The equation of a quadratic in vertex form is
f(x) = a (x - h)² + k
where (h, k ) are the coordinates of the vertex and a is a multiplier
f(x) = (x - 5)² + 7 ← is in vertex form
Thus the function is quadratic → a
• If a > 0 then the grapg will open upwards
• If a < 0 then the graph will open downwards
Here a = 1 > 0 then graph will open upwards → c
Answer:
11
Step-by-step explanation:
1/5 x^2y - 1 2/3 y^2 x + 4 4/5 yx^2 - 1/3 xy^2
I will write the x and y terms in order for x and y
1/5 x^2y - 1 2/3 xy^2 + 4 4/5 x^2y - 1/3 xy^2
This way I can put the like terms together
1/5 x^2y + 4 4/5 x^2y- 1 2/3 xy^2 - 1/3 xy^2
Combine like terms
(1/5 + 4 4/5) x^2y - (1 2/3 + 1/3) xy^2
5 x^2 y - 2 xy^2
We know x =-2 and y = 1/2
5 ( -2)^2 (1/2) -2(-2) (1/2)^2
Calculating the powers first
5(4) (1/2) - 2(-2) (1/4)
10 - (-1)
10+1
11
