c. 4y -x = 8
each of the equations can be put into slope-intercept form (solved for y) as follows:
a: y = 4x +9
b: y = 4x -8
c: y = (1/4)x +2
d: y = 4x -4
the equations containing the term "4x" all describe parallel lines. the equation containing (1/4)x describes a line that intersects the given line. it is not parallel to the others.
plot the graph and the points.
you can see b, c and e belong to the graph,
y = 5x (x+2)
we are given the following the quadratic function and we are to rewrite it in intercept or factored form:
we can factorize the given expression so taking the common factors out of it to get:
therefore, the factored form of the given quadratic function is y = 5x (x+2).
(x + 2)(x + 5)
for factored form you have to determine what two numbers multiplied by each other equal c that also, when added to each other, equal b.
y= ax^2 + bx + c
the factors of 10 are 1, 2, 5, 10
and 2 + 5 = 7
and in factored form with a = 1
(x + 5)(x + 7)