Answer:
Step-by-step explanation:
humba shea de mora 3end
Answer:
x = 10, y = 30
Step-by-step explanation:
Since this already has a y-value, which is 3x, we will use substitution.
3x + 7x = 10
10x = 10
x = 10
Now that we know x, we can figure out what y is.
y = 3(10)
y = 30
Down
The formula for a quadratic equation is y = ax^2 + bx + c. In this case, a = -4, b = 8, and c = 12. The direction of the parabola can be determined by a. If a is positive, the parabola opens upwards, and if a is negative, the parabola will open downwards.
Answer:
y = -4x + 19
Step-by-step explanation:
The line parallel to y = -4x + 1 would have the same slope of -4. The coefficient of x will be -4. We can put this into the equation y = -4x + a where <em>a</em> is the y-intercept and a ≠ 1. Now solve for <em>a</em>.
y = -4x + a
plug in 4 for x and 3 for y
3 = -4(4) + a
simplify
3 = -16 + a
+16 both sides
19 = a
a = 19
y = -4x + 19