Finding y-intercept, equation of the axis of symmetry, and x-coordinate of the vertex of a quadratic function
For the function f(x) = x² - 6x + 8,
Find the y-intercept, the equation of the axis of symmetry, and the x-coordinate of the vertex.
Find the point of intersection of lines L: x = 7 and M: y = -8.
A triangle has sides of length 'a' cm, (25 - a) cm and (2a +3) cm. If the perimeter is 40 cm, find the length of 'a' cm.
The width of a rectangle is 2 inches less than its length. Find the length and width if the area of the rectangle is 35 inches wide.
Brenda is 4 years older than Walter, and Carol is twice as old as Brenda. Three years ago, the sum of their ages was 35. How old is each now?
How do you solve the system of inequalities by graphing?
y ≤ 2x + 2
y < -x + 1
Five times the sum of a number and 12 is 32 less than 4 times the number, What is the number?